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Finding the Fourth Proportional to 605,557,800.90, 908,336,701.35 and 497,940,998.40

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Solution

The fourth proportional to 605,557,800.90, 908,336,701.35 and 497,940,998.40 is: 746,911,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,557,800.90 : 908,336,701.35 = 497,940,998.40 : x
  2. Step 2: Convert to fraction form
    605,557,800.90/908,336,701.35 = 497,940,998.40/x
  3. Step 3: Cross multiply
    605,557,800.90x = 908,336,701.35 × 497,940,998.40
  4. Step 4: Simplify right side
    605,557,800.90x = 452,298,083,953,581,632
  5. Step 5: Solve for x
    x = 452,298,083,953,581,632/605,557,800.90
  6. Step 6: Final answer
    x = 746,911,497.60

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Similar ratio
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1.5x scale

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.