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Finding the Fourth Proportional to 2,762,988, 4,144,715.28 and 768,444

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Solution

The fourth proportional to 2,762,988, 4,144,715.28 and 768,444 is: 1,152,730.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762,988 : 4,144,715.28 = 768,444 : x
  2. Step 2: Convert to fraction form
    2,762,988/4,144,715.28 = 768,444/x
  3. Step 3: Cross multiply
    2,762,988x = 4,144,715.28 × 768,444
  4. Step 4: Simplify right side
    2,762,988x = 3,184,981,588,624.32
  5. Step 5: Solve for x
    x = 3,184,981,588,624.32/2,762,988
  6. Step 6: Final answer
    x = 1,152,730.88

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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.