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Finding the Fourth Proportional to 531,765.68, 733,838.92 and 290,053.45

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Solution

The fourth proportional to 531,765.68, 733,838.92 and 290,053.45 is: 400,275.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,765.68 : 733,838.92 = 290,053.45 : x
  2. Step 2: Convert to fraction form
    531,765.68/733,838.92 = 290,053.45/x
  3. Step 3: Cross multiply
    531,765.68x = 733,838.92 × 290,053.45
  4. Step 4: Simplify right side
    531,765.68x = 212,852,510,490.27
  5. Step 5: Solve for x
    x = 212,852,510,490.27/531,765.68
  6. Step 6: Final answer
    x = 400,275.01

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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.