Home / 386,537.57-533,422.14-216,771.69

Finding the Fourth Proportional to 386,537.57, 533,422.14 and 216,771.69

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Solution

The fourth proportional to 386,537.57, 533,422.14 and 216,771.69 is: 299,145.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,537.57 : 533,422.14 = 216,771.69 : x
  2. Step 2: Convert to fraction form
    386,537.57/533,422.14 = 216,771.69/x
  3. Step 3: Cross multiply
    386,537.57x = 533,422.14 × 216,771.69
  4. Step 4: Simplify right side
    386,537.57x = 115,630,818,771.22
  5. Step 5: Solve for x
    x = 115,630,818,771.22/386,537.57
  6. Step 6: Final answer
    x = 299,145.10

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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.