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Finding the Fourth Proportional to 566,858,988.89, 782,600,965.68 and 503,961,358.77

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Solution

The fourth proportional to 566,858,988.89, 782,600,965.68 and 503,961,358.77 is: 695,765,002.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,858,988.89 : 782,600,965.68 = 503,961,358.77 : x
  2. Step 2: Convert to fraction form
    566,858,988.89/782,600,965.68 = 503,961,358.77/x
  3. Step 3: Cross multiply
    566,858,988.89x = 782,600,965.68 × 503,961,358.77
  4. Step 4: Simplify right side
    566,858,988.89x = 394,400,646,040,696,768
  5. Step 5: Solve for x
    x = 394,400,646,040,696,768/566,858,988.89
  6. Step 6: Final answer
    x = 695,765,002.89

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1.5x scale

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.