Home / 857,647.50-1,286,471.25-587,509.26

Finding the Fourth Proportional to 857,647.50, 1,286,471.25 and 587,509.26

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Solution

The fourth proportional to 857,647.50, 1,286,471.25 and 587,509.26 is: 881,263.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,647.50 : 1,286,471.25 = 587,509.26 : x
  2. Step 2: Convert to fraction form
    857,647.50/1,286,471.25 = 587,509.26/x
  3. Step 3: Cross multiply
    857,647.50x = 1,286,471.25 × 587,509.26
  4. Step 4: Simplify right side
    857,647.50x = 755,813,772,098.78
  5. Step 5: Solve for x
    x = 755,813,772,098.78/857,647.50
  6. Step 6: Final answer
    x = 881,263.89

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Double scale
Find fourth proportional to 857,648.50, 1,286,472.75 and 587,510.26
Similar ratio
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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.