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Finding the Fourth Proportional to 1,008,384, 1,391,599.62 and 555,704.16

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Solution

The fourth proportional to 1,008,384, 1,391,599.62 and 555,704.16 is: 766,888.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,384 : 1,391,599.62 = 555,704.16 : x
  2. Step 2: Convert to fraction form
    1,008,384/1,391,599.62 = 555,704.16/x
  3. Step 3: Cross multiply
    1,008,384x = 1,391,599.62 × 555,704.16
  4. Step 4: Simplify right side
    1,008,384x = 773,317,697,888.42
  5. Step 5: Solve for x
    x = 773,317,697,888.42/1,008,384
  6. Step 6: Final answer
    x = 766,888.11

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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.