Home / 685,379,752,538.25-945,811,334,374.05-376,724,513,203.55

Finding the Fourth Proportional to 685,379,752,538.25, 945,811,334,374.05 and 376,724,513,203.55

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Solution

The fourth proportional to 685,379,752,538.25, 945,811,334,374.05 and 376,724,513,203.55 is: 519,872,834,300.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,379,752,538.25 : 945,811,334,374.05 = 376,724,513,203.55 : x
  2. Step 2: Convert to fraction form
    685,379,752,538.25/945,811,334,374.05 = 376,724,513,203.55/x
  3. Step 3: Cross multiply
    685,379,752,538.25x = 945,811,334,374.05 × 376,724,513,203.55
  4. Step 4: Simplify right side
    685,379,752,538.25x = 356,310,314,524,464,075,767,808
  5. Step 5: Solve for x
    x = 356,310,314,524,464,075,767,808/685,379,752,538.25
  6. Step 6: Final answer
    x = 519,872,834,300.83

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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.