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Finding the Fourth Proportional to 386,157.60, 532,897.65 and 235,254.60

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Solution

The fourth proportional to 386,157.60, 532,897.65 and 235,254.60 is: 324,651.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,157.60 : 532,897.65 = 235,254.60 : x
  2. Step 2: Convert to fraction form
    386,157.60/532,897.65 = 235,254.60/x
  3. Step 3: Cross multiply
    386,157.60x = 532,897.65 × 235,254.60
  4. Step 4: Simplify right side
    386,157.60x = 125,366,623,491.69
  5. Step 5: Solve for x
    x = 125,366,623,491.69/386,157.60
  6. Step 6: Final answer
    x = 324,651.45

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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.