Home / 566,191.41-781,349.61-311,548.06

Finding the Fourth Proportional to 566,191.41, 781,349.61 and 311,548.06

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Solution

The fourth proportional to 566,191.41, 781,349.61 and 311,548.06 is: 429,939.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,191.41 : 781,349.61 = 311,548.06 : x
  2. Step 2: Convert to fraction form
    566,191.41/781,349.61 = 311,548.06/x
  3. Step 3: Cross multiply
    566,191.41x = 781,349.61 × 311,548.06
  4. Step 4: Simplify right side
    566,191.41x = 243,427,955,569.79
  5. Step 5: Solve for x
    x = 243,427,955,569.79/566,191.41
  6. Step 6: Final answer
    x = 429,939.33

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Double scale
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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.