Home / 1,189,555.32-1,641,587.61-645,691.04

Finding the Fourth Proportional to 1,189,555.32, 1,641,587.61 and 645,691.04

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Solution

The fourth proportional to 1,189,555.32, 1,641,587.61 and 645,691.04 is: 891,054.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,555.32 : 1,641,587.61 = 645,691.04 : x
  2. Step 2: Convert to fraction form
    1,189,555.32/1,641,587.61 = 645,691.04/x
  3. Step 3: Cross multiply
    1,189,555.32x = 1,641,587.61 × 645,691.04
  4. Step 4: Simplify right side
    1,189,555.32x = 1,059,958,402,944.08
  5. Step 5: Solve for x
    x = 1,059,958,402,944.08/1,189,555.32
  6. Step 6: Final answer
    x = 891,054.32

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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.