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Finding the Fourth Proportional to 532,862.40, 799,293.60 and 489,316.80

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Solution

The fourth proportional to 532,862.40, 799,293.60 and 489,316.80 is: 733,975.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,862.40 : 799,293.60 = 489,316.80 : x
  2. Step 2: Convert to fraction form
    532,862.40/799,293.60 = 489,316.80/x
  3. Step 3: Cross multiply
    532,862.40x = 799,293.60 × 489,316.80
  4. Step 4: Simplify right side
    532,862.40x = 391,107,786,612.48
  5. Step 5: Solve for x
    x = 391,107,786,612.48/532,862.40
  6. Step 6: Final answer
    x = 733,975.20

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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.