Home / 814,181.61-1,221,275.56-340,534.72

Finding the Fourth Proportional to 814,181.61, 1,221,275.56 and 340,534.72

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Solution

The fourth proportional to 814,181.61, 1,221,275.56 and 340,534.72 is: 510,803.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,181.61 : 1,221,275.56 = 340,534.72 : x
  2. Step 2: Convert to fraction form
    814,181.61/1,221,275.56 = 340,534.72/x
  3. Step 3: Cross multiply
    814,181.61x = 1,221,275.56 × 340,534.72
  4. Step 4: Simplify right side
    814,181.61x = 415,886,730,867.44
  5. Step 5: Solve for x
    x = 415,886,730,867.44/814,181.61
  6. Step 6: Final answer
    x = 510,803.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.