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Finding the Fourth Proportional to 668,565.18, 922,615.38 and 362,640.33

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Solution

The fourth proportional to 668,565.18, 922,615.38 and 362,640.33 is: 500,441.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,565.18 : 922,615.38 = 362,640.33 : x
  2. Step 2: Convert to fraction form
    668,565.18/922,615.38 = 362,640.33/x
  3. Step 3: Cross multiply
    668,565.18x = 922,615.38 × 362,640.33
  4. Step 4: Simplify right side
    668,565.18x = 334,577,545,866.28
  5. Step 5: Solve for x
    x = 334,577,545,866.28/668,565.18
  6. Step 6: Final answer
    x = 500,441.18

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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.