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Finding the Fourth Proportional to 619,627.12, 929,440.56 and 176,395.12

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Solution

The fourth proportional to 619,627.12, 929,440.56 and 176,395.12 is: 264,592.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,627.12 : 929,440.56 = 176,395.12 : x
  2. Step 2: Convert to fraction form
    619,627.12/929,440.56 = 176,395.12/x
  3. Step 3: Cross multiply
    619,627.12x = 929,440.56 × 176,395.12
  4. Step 4: Simplify right side
    619,627.12x = 163,948,779,114.07
  5. Step 5: Solve for x
    x = 163,948,779,114.07/619,627.12
  6. Step 6: Final answer
    x = 264,592.65

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Half scale
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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.