Home / 986,365.11-1,478,357.87-480,167.43

Finding the Fourth Proportional to 986,365.11, 1,478,357.87 and 480,167.43

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Solution

The fourth proportional to 986,365.11, 1,478,357.87 and 480,167.43 is: 719,671.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,365.11 : 1,478,357.87 = 480,167.43 : x
  2. Step 2: Convert to fraction form
    986,365.11/1,478,357.87 = 480,167.43/x
  3. Step 3: Cross multiply
    986,365.11x = 1,478,357.87 × 480,167.43
  4. Step 4: Simplify right side
    986,365.11x = 709,859,296,657.34
  5. Step 5: Solve for x
    x = 709,859,296,657.34/986,365.11
  6. Step 6: Final answer
    x = 719,671.94

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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.