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Finding the Fourth Proportional to 576,090.90, 864,136.35 and 560,538.90

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Solution

The fourth proportional to 576,090.90, 864,136.35 and 560,538.90 is: 840,808.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,090.90 : 864,136.35 = 560,538.90 : x
  2. Step 2: Convert to fraction form
    576,090.90/864,136.35 = 560,538.90/x
  3. Step 3: Cross multiply
    576,090.90x = 864,136.35 × 560,538.90
  4. Step 4: Simplify right side
    576,090.90x = 484,382,039,079.02
  5. Step 5: Solve for x
    x = 484,382,039,079.02/576,090.90
  6. Step 6: Final answer
    x = 840,808.35

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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.