Home / 1,298,775.09-1,792,154.40-717,919.76

Finding the Fourth Proportional to 1,298,775.09, 1,792,154.40 and 717,919.76

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Solution

The fourth proportional to 1,298,775.09, 1,792,154.40 and 717,919.76 is: 990,643.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,775.09 : 1,792,154.40 = 717,919.76 : x
  2. Step 2: Convert to fraction form
    1,298,775.09/1,792,154.40 = 717,919.76/x
  3. Step 3: Cross multiply
    1,298,775.09x = 1,792,154.40 × 717,919.76
  4. Step 4: Simplify right side
    1,298,775.09x = 1,286,623,047,770.17
  5. Step 5: Solve for x
    x = 1,286,623,047,770.17/1,298,775.09
  6. Step 6: Final answer
    x = 990,643.46

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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.