Home / 1,377,248.32-1,900,564.48-765,385.36

Finding the Fourth Proportional to 1,377,248.32, 1,900,564.48 and 765,385.36

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Solution

The fourth proportional to 1,377,248.32, 1,900,564.48 and 765,385.36 is: 1,056,210.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,248.32 : 1,900,564.48 = 765,385.36 : x
  2. Step 2: Convert to fraction form
    1,377,248.32/1,900,564.48 = 765,385.36/x
  3. Step 3: Cross multiply
    1,377,248.32x = 1,900,564.48 × 765,385.36
  4. Step 4: Simplify right side
    1,377,248.32x = 1,454,664,228,728.01
  5. Step 5: Solve for x
    x = 1,454,664,228,728.01/1,377,248.32
  6. Step 6: Final answer
    x = 1,056,210.57

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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.