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Finding the Fourth Proportional to 577,635.84, 865,274.40 and 340,260.48

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Solution

The fourth proportional to 577,635.84, 865,274.40 and 340,260.48 is: 509,696.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,635.84 : 865,274.40 = 340,260.48 : x
  2. Step 2: Convert to fraction form
    577,635.84/865,274.40 = 340,260.48/x
  3. Step 3: Cross multiply
    577,635.84x = 865,274.40 × 340,260.48
  4. Step 4: Simplify right side
    577,635.84x = 294,418,682,675.71
  5. Step 5: Solve for x
    x = 294,418,682,675.71/577,635.84
  6. Step 6: Final answer
    x = 509,696.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.