Home / 438,036.58-604,619.76-256,787.74

Finding the Fourth Proportional to 438,036.58, 604,619.76 and 256,787.74

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Solution

The fourth proportional to 438,036.58, 604,619.76 and 256,787.74 is: 354,442.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,036.58 : 604,619.76 = 256,787.74 : x
  2. Step 2: Convert to fraction form
    438,036.58/604,619.76 = 256,787.74/x
  3. Step 3: Cross multiply
    438,036.58x = 604,619.76 × 256,787.74
  4. Step 4: Simplify right side
    438,036.58x = 155,258,943,448.47
  5. Step 5: Solve for x
    x = 155,258,943,448.47/438,036.58
  6. Step 6: Final answer
    x = 354,442.87

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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.