Home / 1,131,356.87-1,561,303.09-615,145.42

Finding the Fourth Proportional to 1,131,356.87, 1,561,303.09 and 615,145.42

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Solution

The fourth proportional to 1,131,356.87, 1,561,303.09 and 615,145.42 is: 848,917.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,356.87 : 1,561,303.09 = 615,145.42 : x
  2. Step 2: Convert to fraction form
    1,131,356.87/1,561,303.09 = 615,145.42/x
  3. Step 3: Cross multiply
    1,131,356.87x = 1,561,303.09 × 615,145.42
  4. Step 4: Simplify right side
    1,131,356.87x = 960,428,445,045.35
  5. Step 5: Solve for x
    x = 960,428,445,045.35/1,131,356.87
  6. Step 6: Final answer
    x = 848,917.32

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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.