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Finding the Fourth Proportional to 922,313.28, 1,374,301.14 and 821,700.32

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Solution

The fourth proportional to 922,313.28, 1,374,301.14 and 821,700.32 is: 1,224,381.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,313.28 : 1,374,301.14 = 821,700.32 : x
  2. Step 2: Convert to fraction form
    922,313.28/1,374,301.14 = 821,700.32/x
  3. Step 3: Cross multiply
    922,313.28x = 1,374,301.14 × 821,700.32
  4. Step 4: Simplify right side
    922,313.28x = 1,129,263,686,514.36
  5. Step 5: Solve for x
    x = 1,129,263,686,514.36/922,313.28
  6. Step 6: Final answer
    x = 1,224,381.90

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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.