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Finding the Fourth Proportional to 614,565,308.70, 921,847,963.05 and 614,565,308.70

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Solution

The fourth proportional to 614,565,308.70, 921,847,963.05 and 614,565,308.70 is: 921,847,963.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,565,308.70 : 921,847,963.05 = 614,565,308.70 : x
  2. Step 2: Convert to fraction form
    614,565,308.70/921,847,963.05 = 614,565,308.70/x
  3. Step 3: Cross multiply
    614,565,308.70x = 921,847,963.05 × 614,565,308.70
  4. Step 4: Simplify right side
    614,565,308.70x = 566,535,777,986,289,472
  5. Step 5: Solve for x
    x = 566,535,777,986,289,472/614,565,308.70
  6. Step 6: Final answer
    x = 921,847,963.05

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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.