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Finding the Fourth Proportional to 624,774, 862,343.64 and 356,657.52

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Solution

The fourth proportional to 624,774, 862,343.64 and 356,657.52 is: 492,276.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,774 : 862,343.64 = 356,657.52 : x
  2. Step 2: Convert to fraction form
    624,774/862,343.64 = 356,657.52/x
  3. Step 3: Cross multiply
    624,774x = 862,343.64 × 356,657.52
  4. Step 4: Simplify right side
    624,774x = 307,561,344,030.17
  5. Step 5: Solve for x
    x = 307,561,344,030.17/624,774
  6. Step 6: Final answer
    x = 492,276.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.