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Finding the Fourth Proportional to 325,777.92, 486,438.80 and 291,824.88

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Solution

The fourth proportional to 325,777.92, 486,438.80 and 291,824.88 is: 435,741.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,777.92 : 486,438.80 = 291,824.88 : x
  2. Step 2: Convert to fraction form
    325,777.92/486,438.80 = 291,824.88/x
  3. Step 3: Cross multiply
    325,777.92x = 486,438.80 × 291,824.88
  4. Step 4: Simplify right side
    325,777.92x = 141,954,944,437.34
  5. Step 5: Solve for x
    x = 141,954,944,437.34/325,777.92
  6. Step 6: Final answer
    x = 435,741.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.