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Finding the Fourth Proportional to 473,992.76, 654,126 and 259,128.56

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Solution

The fourth proportional to 473,992.76, 654,126 and 259,128.56 is: 357,606.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,992.76 : 654,126 = 259,128.56 : x
  2. Step 2: Convert to fraction form
    473,992.76/654,126 = 259,128.56/x
  3. Step 3: Cross multiply
    473,992.76x = 654,126 × 259,128.56
  4. Step 4: Simplify right side
    473,992.76x = 169,502,728,438.56
  5. Step 5: Solve for x
    x = 169,502,728,438.56/473,992.76
  6. Step 6: Final answer
    x = 357,606.16

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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.