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Finding the Fourth Proportional to 659,848.70, 910,601.82 and 358,042.70

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Solution

The fourth proportional to 659,848.70, 910,601.82 and 358,042.70 is: 494,104.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,848.70 : 910,601.82 = 358,042.70 : x
  2. Step 2: Convert to fraction form
    659,848.70/910,601.82 = 358,042.70/x
  3. Step 3: Cross multiply
    659,848.70x = 910,601.82 × 358,042.70
  4. Step 4: Simplify right side
    659,848.70x = 326,034,334,257.71
  5. Step 5: Solve for x
    x = 326,034,334,257.71/659,848.70
  6. Step 6: Final answer
    x = 494,104.69

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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.