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Finding the Fourth Proportional to 576,114.30, 864,171.45 and 155,390.10

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Solution

The fourth proportional to 576,114.30, 864,171.45 and 155,390.10 is: 233,085.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,114.30 : 864,171.45 = 155,390.10 : x
  2. Step 2: Convert to fraction form
    576,114.30/864,171.45 = 155,390.10/x
  3. Step 3: Cross multiply
    576,114.30x = 864,171.45 × 155,390.10
  4. Step 4: Simplify right side
    576,114.30x = 134,283,688,032.65
  5. Step 5: Solve for x
    x = 134,283,688,032.65/576,114.30
  6. Step 6: Final answer
    x = 233,085.15

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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.