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Finding the Fourth Proportional to 582,806.55, 873,988.35 and 278,888.74

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Solution

The fourth proportional to 582,806.55, 873,988.35 and 278,888.74 is: 418,227.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,806.55 : 873,988.35 = 278,888.74 : x
  2. Step 2: Convert to fraction form
    582,806.55/873,988.35 = 278,888.74/x
  3. Step 3: Cross multiply
    582,806.55x = 873,988.35 × 278,888.74
  4. Step 4: Simplify right side
    582,806.55x = 243,745,509,706.18
  5. Step 5: Solve for x
    x = 243,745,509,706.18/582,806.55
  6. Step 6: Final answer
    x = 418,227.13

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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.