Home / 1,272,612.78-1,756,217.46-699,657

Finding the Fourth Proportional to 1,272,612.78, 1,756,217.46 and 699,657

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Solution

The fourth proportional to 1,272,612.78, 1,756,217.46 and 699,657 is: 965,533.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,612.78 : 1,756,217.46 = 699,657 : x
  2. Step 2: Convert to fraction form
    1,272,612.78/1,756,217.46 = 699,657/x
  3. Step 3: Cross multiply
    1,272,612.78x = 1,756,217.46 × 699,657
  4. Step 4: Simplify right side
    1,272,612.78x = 1,228,749,839,411.22
  5. Step 5: Solve for x
    x = 1,228,749,839,411.22/1,272,612.78
  6. Step 6: Final answer
    x = 965,533.16

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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.