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Finding the Fourth Proportional to 331,301.70, 497,017.35 and 141,761.70

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Solution

The fourth proportional to 331,301.70, 497,017.35 and 141,761.70 is: 212,670.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,301.70 : 497,017.35 = 141,761.70 : x
  2. Step 2: Convert to fraction form
    331,301.70/497,017.35 = 141,761.70/x
  3. Step 3: Cross multiply
    331,301.70x = 497,017.35 × 141,761.70
  4. Step 4: Simplify right side
    331,301.70x = 70,458,024,465.50
  5. Step 5: Solve for x
    x = 70,458,024,465.50/331,301.70
  6. Step 6: Final answer
    x = 212,670.28

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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.