Home / 772,177.11-1,065,244.01-485,855.07

Finding the Fourth Proportional to 772,177.11, 1,065,244.01 and 485,855.07

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Solution

The fourth proportional to 772,177.11, 1,065,244.01 and 485,855.07 is: 670,253.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,177.11 : 1,065,244.01 = 485,855.07 : x
  2. Step 2: Convert to fraction form
    772,177.11/1,065,244.01 = 485,855.07/x
  3. Step 3: Cross multiply
    772,177.11x = 1,065,244.01 × 485,855.07
  4. Step 4: Simplify right side
    772,177.11x = 517,554,200,616.36
  5. Step 5: Solve for x
    x = 517,554,200,616.36/772,177.11
  6. Step 6: Final answer
    x = 670,253.23

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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.