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Finding the Fourth Proportional to 619,251.60, 928,877.40 and 540,519.60

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Solution

The fourth proportional to 619,251.60, 928,877.40 and 540,519.60 is: 810,779.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,251.60 : 928,877.40 = 540,519.60 : x
  2. Step 2: Convert to fraction form
    619,251.60/928,877.40 = 540,519.60/x
  3. Step 3: Cross multiply
    619,251.60x = 928,877.40 × 540,519.60
  4. Step 4: Simplify right side
    619,251.60x = 502,076,440,697.04
  5. Step 5: Solve for x
    x = 502,076,440,697.04/619,251.60
  6. Step 6: Final answer
    x = 810,779.40

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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.