Home / 1,286,999.28-1,776,025.16-706,220.64

Finding the Fourth Proportional to 1,286,999.28, 1,776,025.16 and 706,220.64

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Solution

The fourth proportional to 1,286,999.28, 1,776,025.16 and 706,220.64 is: 974,565.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,999.28 : 1,776,025.16 = 706,220.64 : x
  2. Step 2: Convert to fraction form
    1,286,999.28/1,776,025.16 = 706,220.64/x
  3. Step 3: Cross multiply
    1,286,999.28x = 1,776,025.16 × 706,220.64
  4. Step 4: Simplify right side
    1,286,999.28x = 1,254,265,625,151.30
  5. Step 5: Solve for x
    x = 1,254,265,625,151.30/1,286,999.28
  6. Step 6: Final answer
    x = 974,565.91

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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.