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Finding the Fourth Proportional to 386,537.74, 533,264.58 and 259,254.34

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Solution

The fourth proportional to 386,537.74, 533,264.58 and 259,254.34 is: 357,665.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,537.74 : 533,264.58 = 259,254.34 : x
  2. Step 2: Convert to fraction form
    386,537.74/533,264.58 = 259,254.34/x
  3. Step 3: Cross multiply
    386,537.74x = 533,264.58 × 259,254.34
  4. Step 4: Simplify right side
    386,537.74x = 138,251,155,400.12
  5. Step 5: Solve for x
    x = 138,251,155,400.12/386,537.74
  6. Step 6: Final answer
    x = 357,665.35

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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.