Home / 1,317,681.80-1,976,522.70-654,129.80

Finding the Fourth Proportional to 1,317,681.80, 1,976,522.70 and 654,129.80

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Solution

The fourth proportional to 1,317,681.80, 1,976,522.70 and 654,129.80 is: 981,194.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,681.80 : 1,976,522.70 = 654,129.80 : x
  2. Step 2: Convert to fraction form
    1,317,681.80/1,976,522.70 = 654,129.80/x
  3. Step 3: Cross multiply
    1,317,681.80x = 1,976,522.70 × 654,129.80
  4. Step 4: Simplify right side
    1,317,681.80x = 1,292,902,398,446.46
  5. Step 5: Solve for x
    x = 1,292,902,398,446.46/1,317,681.80
  6. Step 6: Final answer
    x = 981,194.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.