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Finding the Fourth Proportional to 692,222.68, 955,086.76 and 405,588.76

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Solution

The fourth proportional to 692,222.68, 955,086.76 and 405,588.76 is: 559,606.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,222.68 : 955,086.76 = 405,588.76 : x
  2. Step 2: Convert to fraction form
    692,222.68/955,086.76 = 405,588.76/x
  3. Step 3: Cross multiply
    692,222.68x = 955,086.76 × 405,588.76
  4. Step 4: Simplify right side
    692,222.68x = 387,372,454,680.82
  5. Step 5: Solve for x
    x = 387,372,454,680.82/692,222.68
  6. Step 6: Final answer
    x = 559,606.71

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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.