Home / 1,209,701.96-1,669,375.47-665,826.04

Finding the Fourth Proportional to 1,209,701.96, 1,669,375.47 and 665,826.04

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Solution

The fourth proportional to 1,209,701.96, 1,669,375.47 and 665,826.04 is: 918,832.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,701.96 : 1,669,375.47 = 665,826.04 : x
  2. Step 2: Convert to fraction form
    1,209,701.96/1,669,375.47 = 665,826.04/x
  3. Step 3: Cross multiply
    1,209,701.96x = 1,669,375.47 × 665,826.04
  4. Step 4: Simplify right side
    1,209,701.96x = 1,111,513,663,046.81
  5. Step 5: Solve for x
    x = 1,111,513,663,046.81/1,209,701.96
  6. Step 6: Final answer
    x = 918,832.66

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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.