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Finding the Fourth Proportional to 1,174,878, 1,621,335.96 and 638,334

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Solution

The fourth proportional to 1,174,878, 1,621,335.96 and 638,334 is: 880,903.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174,878 : 1,621,335.96 = 638,334 : x
  2. Step 2: Convert to fraction form
    1,174,878/1,621,335.96 = 638,334/x
  3. Step 3: Cross multiply
    1,174,878x = 1,621,335.96 × 638,334
  4. Step 4: Simplify right side
    1,174,878x = 1,034,953,868,690.64
  5. Step 5: Solve for x
    x = 1,034,953,868,690.64/1,174,878
  6. Step 6: Final answer
    x = 880,903.27

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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.