Home / 769,559,399.45-1,061,963,519.96-417,127,823.36

Finding the Fourth Proportional to 769,559,399.45, 1,061,963,519.96 and 417,127,823.36

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Solution

The fourth proportional to 769,559,399.45, 1,061,963,519.96 and 417,127,823.36 is: 575,620,974.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,559,399.45 : 1,061,963,519.96 = 417,127,823.36 : x
  2. Step 2: Convert to fraction form
    769,559,399.45/1,061,963,519.96 = 417,127,823.36/x
  3. Step 3: Cross multiply
    769,559,399.45x = 1,061,963,519.96 × 417,127,823.36
  4. Step 4: Simplify right side
    769,559,399.45x = 442,974,531,561,243,264
  5. Step 5: Solve for x
    x = 442,974,531,561,243,264/769,559,399.45
  6. Step 6: Final answer
    x = 575,620,974.65

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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.