Home / 905,195.71-1,249,192.10-497,323.97

Finding the Fourth Proportional to 905,195.71, 1,249,192.10 and 497,323.97

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Solution

The fourth proportional to 905,195.71, 1,249,192.10 and 497,323.97 is: 686,319.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,195.71 : 1,249,192.10 = 497,323.97 : x
  2. Step 2: Convert to fraction form
    905,195.71/1,249,192.10 = 497,323.97/x
  3. Step 3: Cross multiply
    905,195.71x = 1,249,192.10 × 497,323.97
  4. Step 4: Simplify right side
    905,195.71x = 621,253,176,956.32
  5. Step 5: Solve for x
    x = 621,253,176,956.32/905,195.71
  6. Step 6: Final answer
    x = 686,319.18

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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.