Home / 664,921.44-917,578.80-363,117.60

Finding the Fourth Proportional to 664,921.44, 917,578.80 and 363,117.60

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Solution

The fourth proportional to 664,921.44, 917,578.80 and 363,117.60 is: 501,095.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,921.44 : 917,578.80 = 363,117.60 : x
  2. Step 2: Convert to fraction form
    664,921.44/917,578.80 = 363,117.60/x
  3. Step 3: Cross multiply
    664,921.44x = 917,578.80 × 363,117.60
  4. Step 4: Simplify right side
    664,921.44x = 333,189,011,666.88
  5. Step 5: Solve for x
    x = 333,189,011,666.88/664,921.44
  6. Step 6: Final answer
    x = 501,095.30

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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.