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Finding the Fourth Proportional to 343,528.49, 474,070.52 and 190,569.71

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Solution

The fourth proportional to 343,528.49, 474,070.52 and 190,569.71 is: 262,986.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,528.49 : 474,070.52 = 190,569.71 : x
  2. Step 2: Convert to fraction form
    343,528.49/474,070.52 = 190,569.71/x
  3. Step 3: Cross multiply
    343,528.49x = 474,070.52 × 190,569.71
  4. Step 4: Simplify right side
    343,528.49x = 90,343,483,177.55
  5. Step 5: Solve for x
    x = 90,343,483,177.55/343,528.49
  6. Step 6: Final answer
    x = 262,986.87

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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.