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Finding the Fourth Proportional to 532,841.28, 735,312.40 and 291,118.64

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Solution

The fourth proportional to 532,841.28, 735,312.40 and 291,118.64 is: 401,739.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,841.28 : 735,312.40 = 291,118.64 : x
  2. Step 2: Convert to fraction form
    532,841.28/735,312.40 = 291,118.64/x
  3. Step 3: Cross multiply
    532,841.28x = 735,312.40 × 291,118.64
  4. Step 4: Simplify right side
    532,841.28x = 214,063,145,863.14
  5. Step 5: Solve for x
    x = 214,063,145,863.14/532,841.28
  6. Step 6: Final answer
    x = 401,739.04

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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.