Home / 913,328.10-1,260,899.46-550,843.38

Finding the Fourth Proportional to 913,328.10, 1,260,899.46 and 550,843.38

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Solution

The fourth proportional to 913,328.10, 1,260,899.46 and 550,843.38 is: 760,469.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,328.10 : 1,260,899.46 = 550,843.38 : x
  2. Step 2: Convert to fraction form
    913,328.10/1,260,899.46 = 550,843.38/x
  3. Step 3: Cross multiply
    913,328.10x = 1,260,899.46 × 550,843.38
  4. Step 4: Simplify right side
    913,328.10x = 694,558,120,386.58
  5. Step 5: Solve for x
    x = 694,558,120,386.58/913,328.10
  6. Step 6: Final answer
    x = 760,469.45

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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.