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Finding the Fourth Proportional to 621,740.56, 932,610.84 and 411,329.38

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Solution

The fourth proportional to 621,740.56, 932,610.84 and 411,329.38 is: 616,994.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,740.56 : 932,610.84 = 411,329.38 : x
  2. Step 2: Convert to fraction form
    621,740.56/932,610.84 = 411,329.38/x
  3. Step 3: Cross multiply
    621,740.56x = 932,610.84 × 411,329.38
  4. Step 4: Simplify right side
    621,740.56x = 383,610,238,598.48
  5. Step 5: Solve for x
    x = 383,610,238,598.48/621,740.56
  6. Step 6: Final answer
    x = 616,994.07

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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.