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Finding the Fourth Proportional to 782,240.91, 1,079,492.90 and 424,544.91

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Solution

The fourth proportional to 782,240.91, 1,079,492.90 and 424,544.91 is: 585,872.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,240.91 : 1,079,492.90 = 424,544.91 : x
  2. Step 2: Convert to fraction form
    782,240.91/1,079,492.90 = 424,544.91/x
  3. Step 3: Cross multiply
    782,240.91x = 1,079,492.90 × 424,544.91
  4. Step 4: Simplify right side
    782,240.91x = 458,293,213,953.41
  5. Step 5: Solve for x
    x = 458,293,213,953.41/782,240.91
  6. Step 6: Final answer
    x = 585,872.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.