Home / 386,585.19-533,514.20-216,830.25

Finding the Fourth Proportional to 386,585.19, 533,514.20 and 216,830.25

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Solution

The fourth proportional to 386,585.19, 533,514.20 and 216,830.25 is: 299,240.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,585.19 : 533,514.20 = 216,830.25 : x
  2. Step 2: Convert to fraction form
    386,585.19/533,514.20 = 216,830.25/x
  3. Step 3: Cross multiply
    386,585.19x = 533,514.20 × 216,830.25
  4. Step 4: Simplify right side
    386,585.19x = 115,682,016,280.40
  5. Step 5: Solve for x
    x = 115,682,016,280.40/386,585.19
  6. Step 6: Final answer
    x = 299,240.68

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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.