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Finding the Fourth Proportional to 508,840,448.20, 763,260,672.30 and 508,840,448.20

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Solution

The fourth proportional to 508,840,448.20, 763,260,672.30 and 508,840,448.20 is: 763,260,672.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,840,448.20 : 763,260,672.30 = 508,840,448.20 : x
  2. Step 2: Convert to fraction form
    508,840,448.20/763,260,672.30 = 508,840,448.20/x
  3. Step 3: Cross multiply
    508,840,448.20x = 763,260,672.30 × 508,840,448.20
  4. Step 4: Simplify right side
    508,840,448.20x = 388,377,902,586,565,312
  5. Step 5: Solve for x
    x = 388,377,902,586,565,312/508,840,448.20
  6. Step 6: Final answer
    x = 763,260,672.30

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Double scale
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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.