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Finding the Fourth Proportional to 624,591.06, 936,746.43 and 287,307.78

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Solution

The fourth proportional to 624,591.06, 936,746.43 and 287,307.78 is: 430,897.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,591.06 : 936,746.43 = 287,307.78 : x
  2. Step 2: Convert to fraction form
    624,591.06/936,746.43 = 287,307.78/x
  3. Step 3: Cross multiply
    624,591.06x = 936,746.43 × 287,307.78
  4. Step 4: Simplify right side
    624,591.06x = 269,134,537,226.23
  5. Step 5: Solve for x
    x = 269,134,537,226.23/624,591.06
  6. Step 6: Final answer
    x = 430,897.20

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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.