Home / 395,154.20-545,278.28-233,980.40

Finding the Fourth Proportional to 395,154.20, 545,278.28 and 233,980.40

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Solution

The fourth proportional to 395,154.20, 545,278.28 and 233,980.40 is: 322,872.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,154.20 : 545,278.28 = 233,980.40 : x
  2. Step 2: Convert to fraction form
    395,154.20/545,278.28 = 233,980.40/x
  3. Step 3: Cross multiply
    395,154.20x = 545,278.28 × 233,980.40
  4. Step 4: Simplify right side
    395,154.20x = 127,584,430,065.71
  5. Step 5: Solve for x
    x = 127,584,430,065.71/395,154.20
  6. Step 6: Final answer
    x = 322,872.51

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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.