Home / 438,036.15-604,619.17-256,787.31

Finding the Fourth Proportional to 438,036.15, 604,619.17 and 256,787.31

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Solution

The fourth proportional to 438,036.15, 604,619.17 and 256,787.31 is: 354,442.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,036.15 : 604,619.17 = 256,787.31 : x
  2. Step 2: Convert to fraction form
    438,036.15/604,619.17 = 256,787.31/x
  3. Step 3: Cross multiply
    438,036.15x = 604,619.17 × 256,787.31
  4. Step 4: Simplify right side
    438,036.15x = 155,258,530,238.73
  5. Step 5: Solve for x
    x = 155,258,530,238.73/438,036.15
  6. Step 6: Final answer
    x = 354,442.28

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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.