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Finding the Fourth Proportional to 581,906.92, 802,575.60 and 398,254.12

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Solution

The fourth proportional to 581,906.92, 802,575.60 and 398,254.12 is: 549,278.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,906.92 : 802,575.60 = 398,254.12 : x
  2. Step 2: Convert to fraction form
    581,906.92/802,575.60 = 398,254.12/x
  3. Step 3: Cross multiply
    581,906.92x = 802,575.60 × 398,254.12
  4. Step 4: Simplify right side
    581,906.92x = 319,629,039,311.47
  5. Step 5: Solve for x
    x = 319,629,039,311.47/581,906.92
  6. Step 6: Final answer
    x = 549,278.64

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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.