Home / 535,685.20-739,254.60-293,990.24

Finding the Fourth Proportional to 535,685.20, 739,254.60 and 293,990.24

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Solution

The fourth proportional to 535,685.20, 739,254.60 and 293,990.24 is: 405,711.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,685.20 : 739,254.60 = 293,990.24 : x
  2. Step 2: Convert to fraction form
    535,685.20/739,254.60 = 293,990.24/x
  3. Step 3: Cross multiply
    535,685.20x = 739,254.60 × 293,990.24
  4. Step 4: Simplify right side
    535,685.20x = 217,333,639,123.24
  5. Step 5: Solve for x
    x = 217,333,639,123.24/535,685.20
  6. Step 6: Final answer
    x = 405,711.49

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Double scale
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Similar ratio
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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.