Home / 1,637,115.80-2,259,287.87-911,963.32

Finding the Fourth Proportional to 1,637,115.80, 2,259,287.87 and 911,963.32

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Solution

The fourth proportional to 1,637,115.80, 2,259,287.87 and 911,963.32 is: 1,258,547.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637,115.80 : 2,259,287.87 = 911,963.32 : x
  2. Step 2: Convert to fraction form
    1,637,115.80/2,259,287.87 = 911,963.32/x
  3. Step 3: Cross multiply
    1,637,115.80x = 2,259,287.87 × 911,963.32
  4. Step 4: Simplify right side
    1,637,115.80x = 2,060,387,656,552.89
  5. Step 5: Solve for x
    x = 2,060,387,656,552.89/1,637,115.80
  6. Step 6: Final answer
    x = 1,258,547.30

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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.