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Finding the Fourth Proportional to 654,427.60, 981,641.40 and 233,717.20

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Solution

The fourth proportional to 654,427.60, 981,641.40 and 233,717.20 is: 350,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,427.60 : 981,641.40 = 233,717.20 : x
  2. Step 2: Convert to fraction form
    654,427.60/981,641.40 = 233,717.20/x
  3. Step 3: Cross multiply
    654,427.60x = 981,641.40 × 233,717.20
  4. Step 4: Simplify right side
    654,427.60x = 229,426,479,412.08
  5. Step 5: Solve for x
    x = 229,426,479,412.08/654,427.60
  6. Step 6: Final answer
    x = 350,575.80

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.