Home / 1,287,707.61-1,777,032.10-706,916.28

Finding the Fourth Proportional to 1,287,707.61, 1,777,032.10 and 706,916.28

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Solution

The fourth proportional to 1,287,707.61, 1,777,032.10 and 706,916.28 is: 975,542.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,707.61 : 1,777,032.10 = 706,916.28 : x
  2. Step 2: Convert to fraction form
    1,287,707.61/1,777,032.10 = 706,916.28/x
  3. Step 3: Cross multiply
    1,287,707.61x = 1,777,032.10 × 706,916.28
  4. Step 4: Simplify right side
    1,287,707.61x = 1,256,212,921,572.59
  5. Step 5: Solve for x
    x = 1,256,212,921,572.59/1,287,707.61
  6. Step 6: Final answer
    x = 975,542.05

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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.