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Finding the Fourth Proportional to 619,339.24, 928,909.42 and 169,955.16

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Solution

The fourth proportional to 619,339.24, 928,909.42 and 169,955.16 is: 254,905.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,339.24 : 928,909.42 = 169,955.16 : x
  2. Step 2: Convert to fraction form
    619,339.24/928,909.42 = 169,955.16/x
  3. Step 3: Cross multiply
    619,339.24x = 928,909.42 × 169,955.16
  4. Step 4: Simplify right side
    619,339.24x = 157,872,949,101.61
  5. Step 5: Solve for x
    x = 157,872,949,101.61/619,339.24
  6. Step 6: Final answer
    x = 254,905.45

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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.