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Finding the Fourth Proportional to 372,715.40, 514,333.21 and 227,763.56

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Solution

The fourth proportional to 372,715.40, 514,333.21 and 227,763.56 is: 314,305.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,715.40 : 514,333.21 = 227,763.56 : x
  2. Step 2: Convert to fraction form
    372,715.40/514,333.21 = 227,763.56/x
  3. Step 3: Cross multiply
    372,715.40x = 514,333.21 × 227,763.56
  4. Step 4: Simplify right side
    372,715.40x = 117,146,360,364.16
  5. Step 5: Solve for x
    x = 117,146,360,364.16/372,715.40
  6. Step 6: Final answer
    x = 314,305.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.