Home / 685,379,752,534.35-945,811,334,368.68-376,724,513,199.69

Finding the Fourth Proportional to 685,379,752,534.35, 945,811,334,368.68 and 376,724,513,199.69

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Solution

The fourth proportional to 685,379,752,534.35, 945,811,334,368.68 and 376,724,513,199.69 is: 519,872,834,295.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,379,752,534.35 : 945,811,334,368.68 = 376,724,513,199.69 : x
  2. Step 2: Convert to fraction form
    685,379,752,534.35/945,811,334,368.68 = 376,724,513,199.69/x
  3. Step 3: Cross multiply
    685,379,752,534.35x = 945,811,334,368.68 × 376,724,513,199.69
  4. Step 4: Simplify right side
    685,379,752,534.35x = 356,310,314,518,790,222,643,200
  5. Step 5: Solve for x
    x = 356,310,314,518,790,222,643,200/685,379,752,534.35
  6. Step 6: Final answer
    x = 519,872,834,295.51

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.