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Finding the Fourth Proportional to 720,819.18, 993,585.33 and 567,614.34

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Solution

The fourth proportional to 720,819.18, 993,585.33 and 567,614.34 is: 782,406.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,819.18 : 993,585.33 = 567,614.34 : x
  2. Step 2: Convert to fraction form
    720,819.18/993,585.33 = 567,614.34/x
  3. Step 3: Cross multiply
    720,819.18x = 993,585.33 × 567,614.34
  4. Step 4: Simplify right side
    720,819.18x = 563,973,281,321.63
  5. Step 5: Solve for x
    x = 563,973,281,321.63/720,819.18
  6. Step 6: Final answer
    x = 782,406.04

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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.