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Finding the Fourth Proportional to 296,887.70, 415,117.90 and 296,887.70

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Solution

The fourth proportional to 296,887.70, 415,117.90 and 296,887.70 is: 415,117.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,887.70 : 415,117.90 = 296,887.70 : x
  2. Step 2: Convert to fraction form
    296,887.70/415,117.90 = 296,887.70/x
  3. Step 3: Cross multiply
    296,887.70x = 415,117.90 × 296,887.70
  4. Step 4: Simplify right side
    296,887.70x = 123,243,398,559.83
  5. Step 5: Solve for x
    x = 123,243,398,559.83/296,887.70
  6. Step 6: Final answer
    x = 415,117.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.