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Finding the Fourth Proportional to 528,038.20, 791,862.90 and 173,063.80

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Solution

The fourth proportional to 528,038.20, 791,862.90 and 173,063.80 is: 259,531.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,038.20 : 791,862.90 = 173,063.80 : x
  2. Step 2: Convert to fraction form
    528,038.20/791,862.90 = 173,063.80/x
  3. Step 3: Cross multiply
    528,038.20x = 791,862.90 × 173,063.80
  4. Step 4: Simplify right side
    528,038.20x = 137,042,802,553.02
  5. Step 5: Solve for x
    x = 137,042,802,553.02/528,038.20
  6. Step 6: Final answer
    x = 259,531.99

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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.