Home / 615,629.20-923,443.80-172,397.20

Finding the Fourth Proportional to 615,629.20, 923,443.80 and 172,397.20

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Solution

The fourth proportional to 615,629.20, 923,443.80 and 172,397.20 is: 258,595.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,629.20 : 923,443.80 = 172,397.20 : x
  2. Step 2: Convert to fraction form
    615,629.20/923,443.80 = 172,397.20/x
  3. Step 3: Cross multiply
    615,629.20x = 923,443.80 × 172,397.20
  4. Step 4: Simplify right side
    615,629.20x = 159,199,125,477.36
  5. Step 5: Solve for x
    x = 159,199,125,477.36/615,629.20
  6. Step 6: Final answer
    x = 258,595.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.