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Finding the Fourth Proportional to 1,322,258.04, 1,824,709.68 and 718,646.04

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Solution

The fourth proportional to 1,322,258.04, 1,824,709.68 and 718,646.04 is: 991,728.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322,258.04 : 1,824,709.68 = 718,646.04 : x
  2. Step 2: Convert to fraction form
    1,322,258.04/1,824,709.68 = 718,646.04/x
  3. Step 3: Cross multiply
    1,322,258.04x = 1,824,709.68 × 718,646.04
  4. Step 4: Simplify right side
    1,322,258.04x = 1,311,320,385,681.67
  5. Step 5: Solve for x
    x = 1,311,320,385,681.67/1,322,258.04
  6. Step 6: Final answer
    x = 991,728.05

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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.