Home / 312,000.28-430,560.49-176,063.12

Finding the Fourth Proportional to 312,000.28, 430,560.49 and 176,063.12

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Solution

The fourth proportional to 312,000.28, 430,560.49 and 176,063.12 is: 242,967.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,000.28 : 430,560.49 = 176,063.12 : x
  2. Step 2: Convert to fraction form
    312,000.28/430,560.49 = 176,063.12/x
  3. Step 3: Cross multiply
    312,000.28x = 430,560.49 × 176,063.12
  4. Step 4: Simplify right side
    312,000.28x = 75,805,823,218.13
  5. Step 5: Solve for x
    x = 75,805,823,218.13/312,000.28
  6. Step 6: Final answer
    x = 242,967.16

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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.