Home / 898,697.11-1,240,210.46-511,493.54

Finding the Fourth Proportional to 898,697.11, 1,240,210.46 and 511,493.54

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Solution

The fourth proportional to 898,697.11, 1,240,210.46 and 511,493.54 is: 705,865.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,697.11 : 1,240,210.46 = 511,493.54 : x
  2. Step 2: Convert to fraction form
    898,697.11/1,240,210.46 = 511,493.54/x
  3. Step 3: Cross multiply
    898,697.11x = 1,240,210.46 × 511,493.54
  4. Step 4: Simplify right side
    898,697.11x = 634,359,640,991.59
  5. Step 5: Solve for x
    x = 634,359,640,991.59/898,697.11
  6. Step 6: Final answer
    x = 705,865.90

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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.