Home / 665,922.32-919,062.69-375,593.51

Finding the Fourth Proportional to 665,922.32, 919,062.69 and 375,593.51

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Solution

The fourth proportional to 665,922.32, 919,062.69 and 375,593.51 is: 518,369.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,922.32 : 919,062.69 = 375,593.51 : x
  2. Step 2: Convert to fraction form
    665,922.32/919,062.69 = 375,593.51/x
  3. Step 3: Cross multiply
    665,922.32x = 919,062.69 × 375,593.51
  4. Step 4: Simplify right side
    665,922.32x = 345,193,975,173.86
  5. Step 5: Solve for x
    x = 345,193,975,173.86/665,922.32
  6. Step 6: Final answer
    x = 518,369.74

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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.