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Finding the Fourth Proportional to 619,862.40, 929,793.60 and 170,582.40

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Solution

The fourth proportional to 619,862.40, 929,793.60 and 170,582.40 is: 255,873.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,862.40 : 929,793.60 = 170,582.40 : x
  2. Step 2: Convert to fraction form
    619,862.40/929,793.60 = 170,582.40/x
  3. Step 3: Cross multiply
    619,862.40x = 929,793.60 × 170,582.40
  4. Step 4: Simplify right side
    619,862.40x = 158,606,423,792.64
  5. Step 5: Solve for x
    x = 158,606,423,792.64/619,862.40
  6. Step 6: Final answer
    x = 255,873.60

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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.