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Finding the Fourth Proportional to 612,397.73, 918,632.34 and 185,947.47

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Solution

The fourth proportional to 612,397.73, 918,632.34 and 185,947.47 is: 278,932.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,397.73 : 918,632.34 = 185,947.47 : x
  2. Step 2: Convert to fraction form
    612,397.73/918,632.34 = 185,947.47/x
  3. Step 3: Cross multiply
    612,397.73x = 918,632.34 × 185,947.47
  4. Step 4: Simplify right side
    612,397.73x = 170,817,359,483.18
  5. Step 5: Solve for x
    x = 170,817,359,483.18/612,397.73
  6. Step 6: Final answer
    x = 278,932.06

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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.