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Finding the Fourth Proportional to 291,543.80, 437,315.70 and 291,543.80

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Solution

The fourth proportional to 291,543.80, 437,315.70 and 291,543.80 is: 437,315.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,543.80 : 437,315.70 = 291,543.80 : x
  2. Step 2: Convert to fraction form
    291,543.80/437,315.70 = 291,543.80/x
  3. Step 3: Cross multiply
    291,543.80x = 437,315.70 × 291,543.80
  4. Step 4: Simplify right side
    291,543.80x = 127,496,680,977.66
  5. Step 5: Solve for x
    x = 127,496,680,977.66/291,543.80
  6. Step 6: Final answer
    x = 437,315.70

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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.