Home / 766,410.87-1,057,647.29-444,307.69

Finding the Fourth Proportional to 766,410.87, 1,057,647.29 and 444,307.69

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Solution

The fourth proportional to 766,410.87, 1,057,647.29 and 444,307.69 is: 613,144.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,410.87 : 1,057,647.29 = 444,307.69 : x
  2. Step 2: Convert to fraction form
    766,410.87/1,057,647.29 = 444,307.69/x
  3. Step 3: Cross multiply
    766,410.87x = 1,057,647.29 × 444,307.69
  4. Step 4: Simplify right side
    766,410.87x = 469,920,824,254.66
  5. Step 5: Solve for x
    x = 469,920,824,254.66/766,410.87
  6. Step 6: Final answer
    x = 613,144.78

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Double scale
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1.5x scale

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.