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Finding the Fourth Proportional to 659,648.11, 910,316.14 and 357,842.11

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Solution

The fourth proportional to 659,648.11, 910,316.14 and 357,842.11 is: 493,823.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,648.11 : 910,316.14 = 357,842.11 : x
  2. Step 2: Convert to fraction form
    659,648.11/910,316.14 = 357,842.11/x
  3. Step 3: Cross multiply
    659,648.11x = 910,316.14 × 357,842.11
  4. Step 4: Simplify right side
    659,648.11x = 325,749,450,560.81
  5. Step 5: Solve for x
    x = 325,749,450,560.81/659,648.11
  6. Step 6: Final answer
    x = 493,823.06

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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.