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Finding the Fourth Proportional to 624,591.10, 936,746.43 and 287,307.82

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Solution

The fourth proportional to 624,591.10, 936,746.43 and 287,307.82 is: 430,897.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,591.10 : 936,746.43 = 287,307.82 : x
  2. Step 2: Convert to fraction form
    624,591.10/936,746.43 = 287,307.82/x
  3. Step 3: Cross multiply
    624,591.10x = 936,746.43 × 287,307.82
  4. Step 4: Simplify right side
    624,591.10x = 269,134,574,696.08
  5. Step 5: Solve for x
    x = 269,134,574,696.08/624,591.10
  6. Step 6: Final answer
    x = 430,897.23

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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.