Home / 319,147.56-440,426.70-175,913.10

Finding the Fourth Proportional to 319,147.56, 440,426.70 and 175,913.10

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Solution

The fourth proportional to 319,147.56, 440,426.70 and 175,913.10 is: 242,761.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,147.56 : 440,426.70 = 175,913.10 : x
  2. Step 2: Convert to fraction form
    319,147.56/440,426.70 = 175,913.10/x
  3. Step 3: Cross multiply
    319,147.56x = 440,426.70 × 175,913.10
  4. Step 4: Simplify right side
    319,147.56x = 77,476,826,119.77
  5. Step 5: Solve for x
    x = 77,476,826,119.77/319,147.56
  6. Step 6: Final answer
    x = 242,761.77

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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.