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Finding the Fourth Proportional to 564,079.20, 847,501.20 and 424,111.20

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Solution

The fourth proportional to 564,079.20, 847,501.20 and 424,111.20 is: 637,206.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,079.20 : 847,501.20 = 424,111.20 : x
  2. Step 2: Convert to fraction form
    564,079.20/847,501.20 = 424,111.20/x
  3. Step 3: Cross multiply
    564,079.20x = 847,501.20 × 424,111.20
  4. Step 4: Simplify right side
    564,079.20x = 359,434,750,933.44
  5. Step 5: Solve for x
    x = 359,434,750,933.44/564,079.20
  6. Step 6: Final answer
    x = 637,206.18

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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.