Home / 854,117.39-1,178,635.74-472,119.56

Finding the Fourth Proportional to 854,117.39, 1,178,635.74 and 472,119.56

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Solution

The fourth proportional to 854,117.39, 1,178,635.74 and 472,119.56 is: 651,499.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,117.39 : 1,178,635.74 = 472,119.56 : x
  2. Step 2: Convert to fraction form
    854,117.39/1,178,635.74 = 472,119.56/x
  3. Step 3: Cross multiply
    854,117.39x = 1,178,635.74 × 472,119.56
  4. Step 4: Simplify right side
    854,117.39x = 556,456,988,145.22
  5. Step 5: Solve for x
    x = 556,456,988,145.22/854,117.39
  6. Step 6: Final answer
    x = 651,499.43

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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.