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Finding the Fourth Proportional to 343,693.45, 474,275.46 and 207,646.98

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Solution

The fourth proportional to 343,693.45, 474,275.46 and 207,646.98 is: 286,539.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,693.45 : 474,275.46 = 207,646.98 : x
  2. Step 2: Convert to fraction form
    343,693.45/474,275.46 = 207,646.98/x
  3. Step 3: Cross multiply
    343,693.45x = 474,275.46 × 207,646.98
  4. Step 4: Simplify right side
    343,693.45x = 98,481,866,957.11
  5. Step 5: Solve for x
    x = 98,481,866,957.11/343,693.45
  6. Step 6: Final answer
    x = 286,539.84

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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.