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Finding the Fourth Proportional to 355,141.98, 535,110.56 and 293,346.59

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Solution

The fourth proportional to 355,141.98, 535,110.56 and 293,346.59 is: 442,000.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,141.98 : 535,110.56 = 293,346.59 : x
  2. Step 2: Convert to fraction form
    355,141.98/535,110.56 = 293,346.59/x
  3. Step 3: Cross multiply
    355,141.98x = 535,110.56 × 293,346.59
  4. Step 4: Simplify right side
    355,141.98x = 156,972,853,906.71
  5. Step 5: Solve for x
    x = 156,972,853,906.71/355,141.98
  6. Step 6: Final answer
    x = 442,000.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.