Home / 312,577.10-431,356.35-169,337.10

Finding the Fourth Proportional to 312,577.10, 431,356.35 and 169,337.10

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Solution

The fourth proportional to 312,577.10, 431,356.35 and 169,337.10 is: 233,685.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,577.10 : 431,356.35 = 169,337.10 : x
  2. Step 2: Convert to fraction form
    312,577.10/431,356.35 = 169,337.10/x
  3. Step 3: Cross multiply
    312,577.10x = 431,356.35 × 169,337.10
  4. Step 4: Simplify right side
    312,577.10x = 73,044,635,628.19
  5. Step 5: Solve for x
    x = 73,044,635,628.19/312,577.10
  6. Step 6: Final answer
    x = 233,685.18

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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.