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Finding the Fourth Proportional to 1,008,799.92, 1,392,145.80 and 549,918.24

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Solution

The fourth proportional to 1,008,799.92, 1,392,145.80 and 549,918.24 is: 758,888.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,799.92 : 1,392,145.80 = 549,918.24 : x
  2. Step 2: Convert to fraction form
    1,008,799.92/1,392,145.80 = 549,918.24/x
  3. Step 3: Cross multiply
    1,008,799.92x = 1,392,145.80 × 549,918.24
  4. Step 4: Simplify right side
    1,008,799.92x = 765,566,368,159.39
  5. Step 5: Solve for x
    x = 765,566,368,159.39/1,008,799.92
  6. Step 6: Final answer
    x = 758,888.21

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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.