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Finding the Fourth Proportional to 535,398.61, 803,011.75 and 156,230.32

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Solution

The fourth proportional to 535,398.61, 803,011.75 and 156,230.32 is: 234,320.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,398.61 : 803,011.75 = 156,230.32 : x
  2. Step 2: Convert to fraction form
    535,398.61/803,011.75 = 156,230.32/x
  3. Step 3: Cross multiply
    535,398.61x = 803,011.75 × 156,230.32
  4. Step 4: Simplify right side
    535,398.61x = 125,454,782,213.20
  5. Step 5: Solve for x
    x = 125,454,782,213.20/535,398.61
  6. Step 6: Final answer
    x = 234,320.34

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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.