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Finding the Fourth Proportional to 581,339.64, 872,000.78 and 160,606.20

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Solution

The fourth proportional to 581,339.64, 872,000.78 and 160,606.20 is: 240,906.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,339.64 : 872,000.78 = 160,606.20 : x
  2. Step 2: Convert to fraction form
    581,339.64/872,000.78 = 160,606.20/x
  3. Step 3: Cross multiply
    581,339.64x = 872,000.78 × 160,606.20
  4. Step 4: Simplify right side
    581,339.64x = 140,048,731,672.84
  5. Step 5: Solve for x
    x = 140,048,731,672.84/581,339.64
  6. Step 6: Final answer
    x = 240,906.90

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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.