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Finding the Fourth Proportional to 531,806.91, 733,875.35 and 316,943.07

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Solution

The fourth proportional to 531,806.91, 733,875.35 and 316,943.07 is: 437,370.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,806.91 : 733,875.35 = 316,943.07 : x
  2. Step 2: Convert to fraction form
    531,806.91/733,875.35 = 316,943.07/x
  3. Step 3: Cross multiply
    531,806.91x = 733,875.35 × 316,943.07
  4. Step 4: Simplify right side
    531,806.91x = 232,596,706,426.33
  5. Step 5: Solve for x
    x = 232,596,706,426.33/531,806.91
  6. Step 6: Final answer
    x = 437,370.60

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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.