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Finding the Fourth Proportional to 922,298.16, 1,374,278.79 and 821,685.24

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Solution

The fourth proportional to 922,298.16, 1,374,278.79 and 821,685.24 is: 1,224,359.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,298.16 : 1,374,278.79 = 821,685.24 : x
  2. Step 2: Convert to fraction form
    922,298.16/1,374,278.79 = 821,685.24/x
  3. Step 3: Cross multiply
    922,298.16x = 1,374,278.79 × 821,685.24
  4. Step 4: Simplify right side
    922,298.16x = 1,129,224,597,388.06
  5. Step 5: Solve for x
    x = 1,129,224,597,388.06/922,298.16
  6. Step 6: Final answer
    x = 1,224,359.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.