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Finding the Fourth Proportional to 539,474,952.90, 756,030,209.10 and 539,474,952.90

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Solution

The fourth proportional to 539,474,952.90, 756,030,209.10 and 539,474,952.90 is: 756,030,209.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,474,952.90 : 756,030,209.10 = 539,474,952.90 : x
  2. Step 2: Convert to fraction form
    539,474,952.90/756,030,209.10 = 539,474,952.90/x
  3. Step 3: Cross multiply
    539,474,952.90x = 756,030,209.10 × 539,474,952.90
  4. Step 4: Simplify right side
    539,474,952.90x = 407,859,361,445,199,616
  5. Step 5: Solve for x
    x = 407,859,361,445,199,616/539,474,952.90
  6. Step 6: Final answer
    x = 756,030,209.10

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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.