Home / 781,145.10-1,077,965.82-441,613.08

Finding the Fourth Proportional to 781,145.10, 1,077,965.82 and 441,613.08

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Solution

The fourth proportional to 781,145.10, 1,077,965.82 and 441,613.08 is: 609,417.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,145.10 : 1,077,965.82 = 441,613.08 : x
  2. Step 2: Convert to fraction form
    781,145.10/1,077,965.82 = 441,613.08/x
  3. Step 3: Cross multiply
    781,145.10x = 1,077,965.82 × 441,613.08
  4. Step 4: Simplify right side
    781,145.10x = 476,043,805,904.93
  5. Step 5: Solve for x
    x = 476,043,805,904.93/781,145.10
  6. Step 6: Final answer
    x = 609,417.90

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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.