Home / 1,229,808.64-1,697,136.64-664,560.64

Finding the Fourth Proportional to 1,229,808.64, 1,697,136.64 and 664,560.64

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Solution

The fourth proportional to 1,229,808.64, 1,697,136.64 and 664,560.64 is: 917,094.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,808.64 : 1,697,136.64 = 664,560.64 : x
  2. Step 2: Convert to fraction form
    1,229,808.64/1,697,136.64 = 664,560.64/x
  3. Step 3: Cross multiply
    1,229,808.64x = 1,697,136.64 × 664,560.64
  4. Step 4: Simplify right side
    1,229,808.64x = 1,127,850,211,645.85
  5. Step 5: Solve for x
    x = 1,127,850,211,645.85/1,229,808.64
  6. Step 6: Final answer
    x = 917,094.07

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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.