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Finding the Fourth Proportional to 576,095.40, 864,143.10 and 539,231.40

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Solution

The fourth proportional to 576,095.40, 864,143.10 and 539,231.40 is: 808,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,095.40 : 864,143.10 = 539,231.40 : x
  2. Step 2: Convert to fraction form
    576,095.40/864,143.10 = 539,231.40/x
  3. Step 3: Cross multiply
    576,095.40x = 864,143.10 × 539,231.40
  4. Step 4: Simplify right side
    576,095.40x = 465,973,093,613.34
  5. Step 5: Solve for x
    x = 465,973,093,613.34/576,095.40
  6. Step 6: Final answer
    x = 808,847.10

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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.