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Finding the Fourth Proportional to 310,373.95, 465,886.70 and 275,061.19

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Solution

The fourth proportional to 310,373.95, 465,886.70 and 275,061.19 is: 412,880.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,373.95 : 465,886.70 = 275,061.19 : x
  2. Step 2: Convert to fraction form
    310,373.95/465,886.70 = 275,061.19/x
  3. Step 3: Cross multiply
    310,373.95x = 465,886.70 × 275,061.19
  4. Step 4: Simplify right side
    310,373.95x = 128,147,350,107.17
  5. Step 5: Solve for x
    x = 128,147,350,107.17/310,373.95
  6. Step 6: Final answer
    x = 412,880.49

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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.