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Finding the Fourth Proportional to 622,970.86, 933,685.36 and 442,769.16

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Solution

The fourth proportional to 622,970.86, 933,685.36 and 442,769.16 is: 663,605.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,970.86 : 933,685.36 = 442,769.16 : x
  2. Step 2: Convert to fraction form
    622,970.86/933,685.36 = 442,769.16/x
  3. Step 3: Cross multiply
    622,970.86x = 933,685.36 × 442,769.16
  4. Step 4: Simplify right side
    622,970.86x = 413,407,082,551.50
  5. Step 5: Solve for x
    x = 413,407,082,551.50/622,970.86
  6. Step 6: Final answer
    x = 663,605.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.