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Finding the Fourth Proportional to 265,613.20, 398,419.80 and 233,472.40

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Solution

The fourth proportional to 265,613.20, 398,419.80 and 233,472.40 is: 350,208.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,613.20 : 398,419.80 = 233,472.40 : x
  2. Step 2: Convert to fraction form
    265,613.20/398,419.80 = 233,472.40/x
  3. Step 3: Cross multiply
    265,613.20x = 398,419.80 × 233,472.40
  4. Step 4: Simplify right side
    265,613.20x = 93,020,026,913.52
  5. Step 5: Solve for x
    x = 93,020,026,913.52/265,613.20
  6. Step 6: Final answer
    x = 350,208.60

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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.