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Finding the Fourth Proportional to 1,262,222.03, 1,741,931.67 and 772,037.88

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Solution

The fourth proportional to 1,262,222.03, 1,741,931.67 and 772,037.88 is: 1,065,452.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,222.03 : 1,741,931.67 = 772,037.88 : x
  2. Step 2: Convert to fraction form
    1,262,222.03/1,741,931.67 = 772,037.88/x
  3. Step 3: Cross multiply
    1,262,222.03x = 1,741,931.67 × 772,037.88
  4. Step 4: Simplify right side
    1,262,222.03x = 1,344,837,229,751.47
  5. Step 5: Solve for x
    x = 1,344,837,229,751.47/1,262,222.03
  6. Step 6: Final answer
    x = 1,065,452.20

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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.