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Finding the Fourth Proportional to 624,722.68, 935,835.37 and 287,300.93

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Solution

The fourth proportional to 624,722.68, 935,835.37 and 287,300.93 is: 430,377.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,722.68 : 935,835.37 = 287,300.93 : x
  2. Step 2: Convert to fraction form
    624,722.68/935,835.37 = 287,300.93/x
  3. Step 3: Cross multiply
    624,722.68x = 935,835.37 × 287,300.93
  4. Step 4: Simplify right side
    624,722.68x = 268,866,368,346.53
  5. Step 5: Solve for x
    x = 268,866,368,346.53/624,722.68
  6. Step 6: Final answer
    x = 430,377.16

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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.