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Finding the Fourth Proportional to 534,570.12, 801,855.18 and 499,140.72

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Solution

The fourth proportional to 534,570.12, 801,855.18 and 499,140.72 is: 748,711.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,570.12 : 801,855.18 = 499,140.72 : x
  2. Step 2: Convert to fraction form
    534,570.12/801,855.18 = 499,140.72/x
  3. Step 3: Cross multiply
    534,570.12x = 801,855.18 × 499,140.72
  4. Step 4: Simplify right side
    534,570.12x = 400,238,571,880.93
  5. Step 5: Solve for x
    x = 400,238,571,880.93/534,570.12
  6. Step 6: Final answer
    x = 748,711.08

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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.