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Finding the Fourth Proportional to 416,859.18, 575,464.04 and 279,275.01

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Solution

The fourth proportional to 416,859.18, 575,464.04 and 279,275.01 is: 385,532.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,859.18 : 575,464.04 = 279,275.01 : x
  2. Step 2: Convert to fraction form
    416,859.18/575,464.04 = 279,275.01/x
  3. Step 3: Cross multiply
    416,859.18x = 575,464.04 × 279,275.01
  4. Step 4: Simplify right side
    416,859.18x = 160,712,724,129.27
  5. Step 5: Solve for x
    x = 160,712,724,129.27/416,859.18
  6. Step 6: Final answer
    x = 385,532.41

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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.