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Finding the Fourth Proportional to 482,957.93, 666,512.98 and 279,017.45

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Solution

The fourth proportional to 482,957.93, 666,512.98 and 279,017.45 is: 385,062.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,957.93 : 666,512.98 = 279,017.45 : x
  2. Step 2: Convert to fraction form
    482,957.93/666,512.98 = 279,017.45/x
  3. Step 3: Cross multiply
    482,957.93x = 666,512.98 × 279,017.45
  4. Step 4: Simplify right side
    482,957.93x = 185,968,748,041.39
  5. Step 5: Solve for x
    x = 185,968,748,041.39/482,957.93
  6. Step 6: Final answer
    x = 385,062.00

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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.