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Finding the Fourth Proportional to 531,677.79, 733,300.70 and 340,708.95

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Solution

The fourth proportional to 531,677.79, 733,300.70 and 340,708.95 is: 469,912.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,677.79 : 733,300.70 = 340,708.95 : x
  2. Step 2: Convert to fraction form
    531,677.79/733,300.70 = 340,708.95/x
  3. Step 3: Cross multiply
    531,677.79x = 733,300.70 × 340,708.95
  4. Step 4: Simplify right side
    531,677.79x = 249,842,109,827.72
  5. Step 5: Solve for x
    x = 249,842,109,827.72/531,677.79
  6. Step 6: Final answer
    x = 469,912.63

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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.