Home / 1,640,265.47-2,263,567.75-915,113.30

Finding the Fourth Proportional to 1,640,265.47, 2,263,567.75 and 915,113.30

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Solution

The fourth proportional to 1,640,265.47, 2,263,567.75 and 915,113.30 is: 1,262,857.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,265.47 : 2,263,567.75 = 915,113.30 : x
  2. Step 2: Convert to fraction form
    1,640,265.47/2,263,567.75 = 915,113.30/x
  3. Step 3: Cross multiply
    1,640,265.47x = 2,263,567.75 × 915,113.30
  4. Step 4: Simplify right side
    1,640,265.47x = 2,071,420,944,446.02
  5. Step 5: Solve for x
    x = 2,071,420,944,446.02/1,640,265.47
  6. Step 6: Final answer
    x = 1,262,857.13

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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.