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Finding the Fourth Proportional to 292,546.70, 438,820.05 and 70,930.70

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Solution

The fourth proportional to 292,546.70, 438,820.05 and 70,930.70 is: 106,396.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,546.70 : 438,820.05 = 70,930.70 : x
  2. Step 2: Convert to fraction form
    292,546.70/438,820.05 = 70,930.70/x
  3. Step 3: Cross multiply
    292,546.70x = 438,820.05 × 70,930.70
  4. Step 4: Simplify right side
    292,546.70x = 31,125,813,320.54
  5. Step 5: Solve for x
    x = 31,125,813,320.54/292,546.70
  6. Step 6: Final answer
    x = 106,396.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.