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Finding the Fourth Proportional to 651,114,613.60, 976,671,920.40 and 563,438,658.40

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Solution

The fourth proportional to 651,114,613.60, 976,671,920.40 and 563,438,658.40 is: 845,157,987.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,114,613.60 : 976,671,920.40 = 563,438,658.40 : x
  2. Step 2: Convert to fraction form
    651,114,613.60/976,671,920.40 = 563,438,658.40/x
  3. Step 3: Cross multiply
    651,114,613.60x = 976,671,920.40 × 563,438,658.40
  4. Step 4: Simplify right side
    651,114,613.60x = 550,294,716,527,127,552
  5. Step 5: Solve for x
    x = 550,294,716,527,127,552/651,114,613.60
  6. Step 6: Final answer
    x = 845,157,987.60

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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.