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Finding the Fourth Proportional to 581,693.40, 872,540.10 and 384,701.40

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Solution

The fourth proportional to 581,693.40, 872,540.10 and 384,701.40 is: 577,052.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,693.40 : 872,540.10 = 384,701.40 : x
  2. Step 2: Convert to fraction form
    581,693.40/872,540.10 = 384,701.40/x
  3. Step 3: Cross multiply
    581,693.40x = 872,540.10 × 384,701.40
  4. Step 4: Simplify right side
    581,693.40x = 335,667,398,026.14
  5. Step 5: Solve for x
    x = 335,667,398,026.14/581,693.40
  6. Step 6: Final answer
    x = 577,052.10

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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.