Home / 1,200,403.12-1,656,532.80-656,536.96

Finding the Fourth Proportional to 1,200,403.12, 1,656,532.80 and 656,536.96

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Solution

The fourth proportional to 1,200,403.12, 1,656,532.80 and 656,536.96 is: 906,008.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,403.12 : 1,656,532.80 = 656,536.96 : x
  2. Step 2: Convert to fraction form
    1,200,403.12/1,656,532.80 = 656,536.96/x
  3. Step 3: Cross multiply
    1,200,403.12x = 1,656,532.80 × 656,536.96
  4. Step 4: Simplify right side
    1,200,403.12x = 1,087,575,008,652.29
  5. Step 5: Solve for x
    x = 1,087,575,008,652.29/1,200,403.12
  6. Step 6: Final answer
    x = 906,008.15

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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.