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Finding the Fourth Proportional to 763,881,267.20, 1,054,141,872 and 424,810,536.80

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Solution

The fourth proportional to 763,881,267.20, 1,054,141,872 and 424,810,536.80 is: 586,230,601.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,881,267.20 : 1,054,141,872 = 424,810,536.80 : x
  2. Step 2: Convert to fraction form
    763,881,267.20/1,054,141,872 = 424,810,536.80/x
  3. Step 3: Cross multiply
    763,881,267.20x = 1,054,141,872 × 424,810,536.80
  4. Step 4: Simplify right side
    763,881,267.20x = 447,810,574,507,676,928
  5. Step 5: Solve for x
    x = 447,810,574,507,676,928/763,881,267.20
  6. Step 6: Final answer
    x = 586,230,601.19

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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.