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Finding the Fourth Proportional to 659,906.14, 910,670.47 and 358,100.14

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Solution

The fourth proportional to 659,906.14, 910,670.47 and 358,100.14 is: 494,178.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,906.14 : 910,670.47 = 358,100.14 : x
  2. Step 2: Convert to fraction form
    659,906.14/910,670.47 = 358,100.14/x
  3. Step 3: Cross multiply
    659,906.14x = 910,670.47 × 358,100.14
  4. Step 4: Simplify right side
    659,906.14x = 326,111,219,628.94
  5. Step 5: Solve for x
    x = 326,111,219,628.94/659,906.14
  6. Step 6: Final answer
    x = 494,178.19

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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.