Home / 828,898.11-1,144,019.19-479,987.78

Finding the Fourth Proportional to 828,898.11, 1,144,019.19 and 479,987.78

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Solution

The fourth proportional to 828,898.11, 1,144,019.19 and 479,987.78 is: 662,464.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,898.11 : 1,144,019.19 = 479,987.78 : x
  2. Step 2: Convert to fraction form
    828,898.11/1,144,019.19 = 479,987.78/x
  3. Step 3: Cross multiply
    828,898.11x = 1,144,019.19 × 479,987.78
  4. Step 4: Simplify right side
    828,898.11x = 549,115,227,365.36
  5. Step 5: Solve for x
    x = 549,115,227,365.36/828,898.11
  6. Step 6: Final answer
    x = 662,464.08

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Double scale
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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.