Home / 886,654.40-1,330,309.65-287,635.10

Finding the Fourth Proportional to 886,654.40, 1,330,309.65 and 287,635.10

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Solution

The fourth proportional to 886,654.40, 1,330,309.65 and 287,635.10 is: 431,559.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,654.40 : 1,330,309.65 = 287,635.10 : x
  2. Step 2: Convert to fraction form
    886,654.40/1,330,309.65 = 287,635.10/x
  3. Step 3: Cross multiply
    886,654.40x = 1,330,309.65 × 287,635.10
  4. Step 4: Simplify right side
    886,654.40x = 382,643,749,208.72
  5. Step 5: Solve for x
    x = 382,643,749,208.72/886,654.40
  6. Step 6: Final answer
    x = 431,559.07

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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.