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Finding the Fourth Proportional to 539,475,057.90, 756,030,356.10 and 539,475,057.90

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Solution

The fourth proportional to 539,475,057.90, 756,030,356.10 and 539,475,057.90 is: 756,030,356.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,475,057.90 : 756,030,356.10 = 539,475,057.90 : x
  2. Step 2: Convert to fraction form
    539,475,057.90/756,030,356.10 = 539,475,057.90/x
  3. Step 3: Cross multiply
    539,475,057.90x = 756,030,356.10 × 539,475,057.90
  4. Step 4: Simplify right side
    539,475,057.90x = 407,859,520,131,205,120
  5. Step 5: Solve for x
    x = 407,859,520,131,205,120/539,475,057.90
  6. Step 6: Final answer
    x = 756,030,356.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.