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Finding the Fourth Proportional to 602,399.57, 903,875.16 and 260,947.40

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Solution

The fourth proportional to 602,399.57, 903,875.16 and 260,947.40 is: 391,540.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,399.57 : 903,875.16 = 260,947.40 : x
  2. Step 2: Convert to fraction form
    602,399.57/903,875.16 = 260,947.40/x
  3. Step 3: Cross multiply
    602,399.57x = 903,875.16 × 260,947.40
  4. Step 4: Simplify right side
    602,399.57x = 235,863,868,407.21
  5. Step 5: Solve for x
    x = 235,863,868,407.21/602,399.57
  6. Step 6: Final answer
    x = 391,540.57

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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.