Home / 1,177,531.40-1,625,032.54-661,376.12

Finding the Fourth Proportional to 1,177,531.40, 1,625,032.54 and 661,376.12

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Solution

The fourth proportional to 1,177,531.40, 1,625,032.54 and 661,376.12 is: 912,721.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,531.40 : 1,625,032.54 = 661,376.12 : x
  2. Step 2: Convert to fraction form
    1,177,531.40/1,625,032.54 = 661,376.12/x
  3. Step 3: Cross multiply
    1,177,531.40x = 1,625,032.54 × 661,376.12
  4. Step 4: Simplify right side
    1,177,531.40x = 1,074,757,716,178.94
  5. Step 5: Solve for x
    x = 1,074,757,716,178.94/1,177,531.40
  6. Step 6: Final answer
    x = 912,721.07

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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.