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Finding the Fourth Proportional to 683,999.70, 943,789.65 and 429,236.07

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Solution

The fourth proportional to 683,999.70, 943,789.65 and 429,236.07 is: 592,264.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,999.70 : 943,789.65 = 429,236.07 : x
  2. Step 2: Convert to fraction form
    683,999.70/943,789.65 = 429,236.07/x
  3. Step 3: Cross multiply
    683,999.70x = 943,789.65 × 429,236.07
  4. Step 4: Simplify right side
    683,999.70x = 405,108,560,272.68
  5. Step 5: Solve for x
    x = 405,108,560,272.68/683,999.70
  6. Step 6: Final answer
    x = 592,264.24

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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.