Home / 898,710.96-1,240,229.61-511,507.44

Finding the Fourth Proportional to 898,710.96, 1,240,229.61 and 511,507.44

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Solution

The fourth proportional to 898,710.96, 1,240,229.61 and 511,507.44 is: 705,885.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,710.96 : 1,240,229.61 = 511,507.44 : x
  2. Step 2: Convert to fraction form
    898,710.96/1,240,229.61 = 511,507.44/x
  3. Step 3: Cross multiply
    898,710.96x = 1,240,229.61 × 511,507.44
  4. Step 4: Simplify right side
    898,710.96x = 634,386,672,823.30
  5. Step 5: Solve for x
    x = 634,386,672,823.30/898,710.96
  6. Step 6: Final answer
    x = 705,885.10

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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.