Home / 898,711.46-1,240,230.30-511,507.94

Finding the Fourth Proportional to 898,711.46, 1,240,230.30 and 511,507.94

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Solution

The fourth proportional to 898,711.46, 1,240,230.30 and 511,507.94 is: 705,885.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,711.46 : 1,240,230.30 = 511,507.94 : x
  2. Step 2: Convert to fraction form
    898,711.46/1,240,230.30 = 511,507.94/x
  3. Step 3: Cross multiply
    898,711.46x = 1,240,230.30 × 511,507.94
  4. Step 4: Simplify right side
    898,711.46x = 634,387,645,878.58
  5. Step 5: Solve for x
    x = 634,387,645,878.58/898,711.46
  6. Step 6: Final answer
    x = 705,885.79

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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.