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Finding the Fourth Proportional to 283,359.52, 391,036.10 and 156,034.80

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Solution

The fourth proportional to 283,359.52, 391,036.10 and 156,034.80 is: 215,328.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,359.52 : 391,036.10 = 156,034.80 : x
  2. Step 2: Convert to fraction form
    283,359.52/391,036.10 = 156,034.80/x
  3. Step 3: Cross multiply
    283,359.52x = 391,036.10 × 156,034.80
  4. Step 4: Simplify right side
    283,359.52x = 61,015,239,656.28
  5. Step 5: Solve for x
    x = 61,015,239,656.28/283,359.52
  6. Step 6: Final answer
    x = 215,328.00

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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.