Home / 1,223,684.32-1,689,298.32-765,053.68

Finding the Fourth Proportional to 1,223,684.32, 1,689,298.32 and 765,053.68

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Solution

The fourth proportional to 1,223,684.32, 1,689,298.32 and 765,053.68 is: 1,056,157.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,684.32 : 1,689,298.32 = 765,053.68 : x
  2. Step 2: Convert to fraction form
    1,223,684.32/1,689,298.32 = 765,053.68/x
  3. Step 3: Cross multiply
    1,223,684.32x = 1,689,298.32 × 765,053.68
  4. Step 4: Simplify right side
    1,223,684.32x = 1,292,403,896,333.82
  5. Step 5: Solve for x
    x = 1,292,403,896,333.82/1,223,684.32
  6. Step 6: Final answer
    x = 1,056,157.93

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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.