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Finding the Fourth Proportional to 966,652,041.20, 1,449,978,061.80 and 276,581,807.60

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Solution

The fourth proportional to 966,652,041.20, 1,449,978,061.80 and 276,581,807.60 is: 414,872,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,652,041.20 : 1,449,978,061.80 = 276,581,807.60 : x
  2. Step 2: Convert to fraction form
    966,652,041.20/1,449,978,061.80 = 276,581,807.60/x
  3. Step 3: Cross multiply
    966,652,041.20x = 1,449,978,061.80 × 276,581,807.60
  4. Step 4: Simplify right side
    966,652,041.20x = 401,037,553,312,988,544
  5. Step 5: Solve for x
    x = 401,037,553,312,988,544/966,652,041.20
  6. Step 6: Final answer
    x = 414,872,711.40

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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.