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Finding the Fourth Proportional to 587,781.40, 824,760.20 and 587,781.40

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Solution

The fourth proportional to 587,781.40, 824,760.20 and 587,781.40 is: 824,760.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,781.40 : 824,760.20 = 587,781.40 : x
  2. Step 2: Convert to fraction form
    587,781.40/824,760.20 = 587,781.40/x
  3. Step 3: Cross multiply
    587,781.40x = 824,760.20 × 587,781.40
  4. Step 4: Simplify right side
    587,781.40x = 484,778,705,020.28
  5. Step 5: Solve for x
    x = 484,778,705,020.28/587,781.40
  6. Step 6: Final answer
    x = 824,760.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.