Home / 386,948.02-533,851.41-252,889.78

Finding the Fourth Proportional to 386,948.02, 533,851.41 and 252,889.78

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Solution

The fourth proportional to 386,948.02, 533,851.41 and 252,889.78 is: 348,898.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,948.02 : 533,851.41 = 252,889.78 : x
  2. Step 2: Convert to fraction form
    386,948.02/533,851.41 = 252,889.78/x
  3. Step 3: Cross multiply
    386,948.02x = 533,851.41 × 252,889.78
  4. Step 4: Simplify right side
    386,948.02x = 135,005,565,627.59
  5. Step 5: Solve for x
    x = 135,005,565,627.59/386,948.02
  6. Step 6: Final answer
    x = 348,898.45

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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.