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Finding the Fourth Proportional to 564,085.20, 847,510.20 and 424,117.20

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Solution

The fourth proportional to 564,085.20, 847,510.20 and 424,117.20 is: 637,215.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,085.20 : 847,510.20 = 424,117.20 : x
  2. Step 2: Convert to fraction form
    564,085.20/847,510.20 = 424,117.20/x
  3. Step 3: Cross multiply
    564,085.20x = 847,510.20 × 424,117.20
  4. Step 4: Simplify right side
    564,085.20x = 359,443,652,995.44
  5. Step 5: Solve for x
    x = 359,443,652,995.44/564,085.20
  6. Step 6: Final answer
    x = 637,215.18

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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.