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Finding the Fourth Proportional to 460,487.55, 690,715.71 and 140,626.52

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Solution

The fourth proportional to 460,487.55, 690,715.71 and 140,626.52 is: 210,935.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,487.55 : 690,715.71 = 140,626.52 : x
  2. Step 2: Convert to fraction form
    460,487.55/690,715.71 = 140,626.52/x
  3. Step 3: Cross multiply
    460,487.55x = 690,715.71 × 140,626.52
  4. Step 4: Simplify right side
    460,487.55x = 97,132,943,153.05
  5. Step 5: Solve for x
    x = 97,132,943,153.05/460,487.55
  6. Step 6: Final answer
    x = 210,935.00

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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.