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Finding the Fourth Proportional to 1,320,303.04, 1,822,016.64 and 716,691.04

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Solution

The fourth proportional to 1,320,303.04, 1,822,016.64 and 716,691.04 is: 989,032.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,303.04 : 1,822,016.64 = 716,691.04 : x
  2. Step 2: Convert to fraction form
    1,320,303.04/1,822,016.64 = 716,691.04/x
  3. Step 3: Cross multiply
    1,320,303.04x = 1,822,016.64 × 716,691.04
  4. Step 4: Simplify right side
    1,320,303.04x = 1,305,823,000,618.91
  5. Step 5: Solve for x
    x = 1,305,823,000,618.91/1,320,303.04
  6. Step 6: Final answer
    x = 989,032.79

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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.