Home / 986,166.72-1,478,679.57-386,425.71

Finding the Fourth Proportional to 986,166.72, 1,478,679.57 and 386,425.71

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Solution

The fourth proportional to 986,166.72, 1,478,679.57 and 386,425.71 is: 579,415.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,166.72 : 1,478,679.57 = 386,425.71 : x
  2. Step 2: Convert to fraction form
    986,166.72/1,478,679.57 = 386,425.71/x
  3. Step 3: Cross multiply
    986,166.72x = 1,478,679.57 × 386,425.71
  4. Step 4: Simplify right side
    986,166.72x = 571,399,802,699.75
  5. Step 5: Solve for x
    x = 571,399,802,699.75/986,166.72
  6. Step 6: Final answer
    x = 579,415.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.