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Finding the Fourth Proportional to 573,098.56, 790,841.28 and 318,441.04

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Solution

The fourth proportional to 573,098.56, 790,841.28 and 318,441.04 is: 439,429.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,098.56 : 790,841.28 = 318,441.04 : x
  2. Step 2: Convert to fraction form
    573,098.56/790,841.28 = 318,441.04/x
  3. Step 3: Cross multiply
    573,098.56x = 790,841.28 × 318,441.04
  4. Step 4: Simplify right side
    573,098.56x = 251,836,319,678.13
  5. Step 5: Solve for x
    x = 251,836,319,678.13/573,098.56
  6. Step 6: Final answer
    x = 439,429.34

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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.