Home / 438,036.59-604,619.77-256,787.75

Finding the Fourth Proportional to 438,036.59, 604,619.77 and 256,787.75

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Solution

The fourth proportional to 438,036.59, 604,619.77 and 256,787.75 is: 354,442.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,036.59 : 604,619.77 = 256,787.75 : x
  2. Step 2: Convert to fraction form
    438,036.59/604,619.77 = 256,787.75/x
  3. Step 3: Cross multiply
    438,036.59x = 604,619.77 × 256,787.75
  4. Step 4: Simplify right side
    438,036.59x = 155,258,946,678.75
  5. Step 5: Solve for x
    x = 155,258,946,678.75/438,036.59
  6. Step 6: Final answer
    x = 354,442.88

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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.