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Finding the Fourth Proportional to 568,656,542.60, 852,984,813.90 and 371,385,643.40

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Solution

The fourth proportional to 568,656,542.60, 852,984,813.90 and 371,385,643.40 is: 557,078,465.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,656,542.60 : 852,984,813.90 = 371,385,643.40 : x
  2. Step 2: Convert to fraction form
    568,656,542.60/852,984,813.90 = 371,385,643.40/x
  3. Step 3: Cross multiply
    568,656,542.60x = 852,984,813.90 × 371,385,643.40
  4. Step 4: Simplify right side
    568,656,542.60x = 316,786,313,920,680,704
  5. Step 5: Solve for x
    x = 316,786,313,920,680,704/568,656,542.60
  6. Step 6: Final answer
    x = 557,078,465.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.