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Finding the Fourth Proportional to 560,414.30, 840,730.80 and 223,397.60

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Solution

The fourth proportional to 560,414.30, 840,730.80 and 223,397.60 is: 335,139.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,414.30 : 840,730.80 = 223,397.60 : x
  2. Step 2: Convert to fraction form
    560,414.30/840,730.80 = 223,397.60/x
  3. Step 3: Cross multiply
    560,414.30x = 840,730.80 × 223,397.60
  4. Step 4: Simplify right side
    560,414.30x = 187,817,242,966.08
  5. Step 5: Solve for x
    x = 187,817,242,966.08/560,414.30
  6. Step 6: Final answer
    x = 335,139.99

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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.