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Finding the Fourth Proportional to 539,239.90, 808,211.85 and 223,534.30

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Solution

The fourth proportional to 539,239.90, 808,211.85 and 223,534.30 is: 335,032.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,239.90 : 808,211.85 = 223,534.30 : x
  2. Step 2: Convert to fraction form
    539,239.90/808,211.85 = 223,534.30/x
  3. Step 3: Cross multiply
    539,239.90x = 808,211.85 × 223,534.30
  4. Step 4: Simplify right side
    539,239.90x = 180,663,070,141.46
  5. Step 5: Solve for x
    x = 180,663,070,141.46/539,239.90
  6. Step 6: Final answer
    x = 335,032.83

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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.