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Finding the Fourth Proportional to 589,717.80, 884,576.70 and 579,876.30

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Solution

The fourth proportional to 589,717.80, 884,576.70 and 579,876.30 is: 869,814.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,717.80 : 884,576.70 = 579,876.30 : x
  2. Step 2: Convert to fraction form
    589,717.80/884,576.70 = 579,876.30/x
  3. Step 3: Cross multiply
    589,717.80x = 884,576.70 × 579,876.30
  4. Step 4: Simplify right side
    589,717.80x = 512,945,063,862.21
  5. Step 5: Solve for x
    x = 512,945,063,862.21/589,717.80
  6. Step 6: Final answer
    x = 869,814.45

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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.