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Finding the Fourth Proportional to 922,302.16, 1,374,284.75 and 821,689.24

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Solution

The fourth proportional to 922,302.16, 1,374,284.75 and 821,689.24 is: 1,224,365.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,302.16 : 1,374,284.75 = 821,689.24 : x
  2. Step 2: Convert to fraction form
    922,302.16/1,374,284.75 = 821,689.24/x
  3. Step 3: Cross multiply
    922,302.16x = 1,374,284.75 × 821,689.24
  4. Step 4: Simplify right side
    922,302.16x = 1,129,234,991,771.09
  5. Step 5: Solve for x
    x = 1,129,234,991,771.09/922,302.16
  6. Step 6: Final answer
    x = 1,224,365.55

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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.