Home / 912,697.11-1,366,949.45-455,886.20

Finding the Fourth Proportional to 912,697.11, 1,366,949.45 and 455,886.20

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Solution

The fourth proportional to 912,697.11, 1,366,949.45 and 455,886.20 is: 682,782.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,697.11 : 1,366,949.45 = 455,886.20 : x
  2. Step 2: Convert to fraction form
    912,697.11/1,366,949.45 = 455,886.20/x
  3. Step 3: Cross multiply
    912,697.11x = 1,366,949.45 × 455,886.20
  4. Step 4: Simplify right side
    912,697.11x = 623,173,394,909.68
  5. Step 5: Solve for x
    x = 623,173,394,909.68/912,697.11
  6. Step 6: Final answer
    x = 682,782.26

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Double scale
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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.