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Finding the Fourth Proportional to 526,381.47, 725,549.65 and 411,457.35

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Solution

The fourth proportional to 526,381.47, 725,549.65 and 411,457.35 is: 567,141.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,381.47 : 725,549.65 = 411,457.35 : x
  2. Step 2: Convert to fraction form
    526,381.47/725,549.65 = 411,457.35/x
  3. Step 3: Cross multiply
    526,381.47x = 725,549.65 × 411,457.35
  4. Step 4: Simplify right side
    526,381.47x = 298,532,740,289.04
  5. Step 5: Solve for x
    x = 298,532,740,289.04/526,381.47
  6. Step 6: Final answer
    x = 567,141.43

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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.