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Finding the Fourth Proportional to 629,856,543.60, 944,784,815.40 and 357,758,751.60

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Solution

The fourth proportional to 629,856,543.60, 944,784,815.40 and 357,758,751.60 is: 536,638,127.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,856,543.60 : 944,784,815.40 = 357,758,751.60 : x
  2. Step 2: Convert to fraction form
    629,856,543.60/944,784,815.40 = 357,758,751.60/x
  3. Step 3: Cross multiply
    629,856,543.60x = 944,784,815.40 × 357,758,751.60
  4. Step 4: Simplify right side
    629,856,543.60x = 338,005,036,088,140,480
  5. Step 5: Solve for x
    x = 338,005,036,088,140,480/629,856,543.60
  6. Step 6: Final answer
    x = 536,638,127.40

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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.