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Finding the Fourth Proportional to 583,696.28, 872,876.28 and 424,307.72

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Solution

The fourth proportional to 583,696.28, 872,876.28 and 424,307.72 is: 634,522.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,696.28 : 872,876.28 = 424,307.72 : x
  2. Step 2: Convert to fraction form
    583,696.28/872,876.28 = 424,307.72/x
  3. Step 3: Cross multiply
    583,696.28x = 872,876.28 × 424,307.72
  4. Step 4: Simplify right side
    583,696.28x = 370,368,144,208.88
  5. Step 5: Solve for x
    x = 370,368,144,208.88/583,696.28
  6. Step 6: Final answer
    x = 634,522.02

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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.