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Finding the Fourth Proportional to 310,253.70, 465,380.55 and 248,045.70

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Solution

The fourth proportional to 310,253.70, 465,380.55 and 248,045.70 is: 372,068.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,253.70 : 465,380.55 = 248,045.70 : x
  2. Step 2: Convert to fraction form
    310,253.70/465,380.55 = 248,045.70/x
  3. Step 3: Cross multiply
    310,253.70x = 465,380.55 × 248,045.70
  4. Step 4: Simplify right side
    310,253.70x = 115,435,644,291.14
  5. Step 5: Solve for x
    x = 115,435,644,291.14/310,253.70
  6. Step 6: Final answer
    x = 372,068.55

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1.5x scale

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.