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Finding the Fourth Proportional to 591,806.80, 886,981.20 and 402,266.80

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Solution

The fourth proportional to 591,806.80, 886,981.20 and 402,266.80 is: 602,904.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,806.80 : 886,981.20 = 402,266.80 : x
  2. Step 2: Convert to fraction form
    591,806.80/886,981.20 = 402,266.80/x
  3. Step 3: Cross multiply
    591,806.80x = 886,981.20 × 402,266.80
  4. Step 4: Simplify right side
    591,806.80x = 356,803,088,984.16
  5. Step 5: Solve for x
    x = 356,803,088,984.16/591,806.80
  6. Step 6: Final answer
    x = 602,904.68

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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.