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Finding the Fourth Proportional to 631,560.80, 871,940.04 and 411,008.24

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Solution

The fourth proportional to 631,560.80, 871,940.04 and 411,008.24 is: 567,442.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,560.80 : 871,940.04 = 411,008.24 : x
  2. Step 2: Convert to fraction form
    631,560.80/871,940.04 = 411,008.24/x
  3. Step 3: Cross multiply
    631,560.80x = 871,940.04 × 411,008.24
  4. Step 4: Simplify right side
    631,560.80x = 358,374,541,225.93
  5. Step 5: Solve for x
    x = 358,374,541,225.93/631,560.80
  6. Step 6: Final answer
    x = 567,442.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.