Home / 665,104.47-917,552.60-406,993.82

Finding the Fourth Proportional to 665,104.47, 917,552.60 and 406,993.82

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Solution

The fourth proportional to 665,104.47, 917,552.60 and 406,993.82 is: 561,473.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,104.47 : 917,552.60 = 406,993.82 : x
  2. Step 2: Convert to fraction form
    665,104.47/917,552.60 = 406,993.82/x
  3. Step 3: Cross multiply
    665,104.47x = 917,552.60 × 406,993.82
  4. Step 4: Simplify right side
    665,104.47x = 373,438,231,102.20
  5. Step 5: Solve for x
    x = 373,438,231,102.20/665,104.47
  6. Step 6: Final answer
    x = 561,473.04

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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.