Home / 319,512.48-440,924.76-176,278.56

Finding the Fourth Proportional to 319,512.48, 440,924.76 and 176,278.56

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Solution

The fourth proportional to 319,512.48, 440,924.76 and 176,278.56 is: 243,263.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,512.48 : 440,924.76 = 176,278.56 : x
  2. Step 2: Convert to fraction form
    319,512.48/440,924.76 = 176,278.56/x
  3. Step 3: Cross multiply
    319,512.48x = 440,924.76 × 176,278.56
  4. Step 4: Simplify right side
    319,512.48x = 77,725,581,761.15
  5. Step 5: Solve for x
    x = 77,725,581,761.15/319,512.48
  6. Step 6: Final answer
    x = 243,263.05

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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.