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Finding the Fourth Proportional to 387,670.87, 535,033.49 and 234,762.23

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Solution

The fourth proportional to 387,670.87, 535,033.49 and 234,762.23 is: 324,000.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,670.87 : 535,033.49 = 234,762.23 : x
  2. Step 2: Convert to fraction form
    387,670.87/535,033.49 = 234,762.23/x
  3. Step 3: Cross multiply
    387,670.87x = 535,033.49 × 234,762.23
  4. Step 4: Simplify right side
    387,670.87x = 125,605,656,955.55
  5. Step 5: Solve for x
    x = 125,605,656,955.55/387,670.87
  6. Step 6: Final answer
    x = 324,000.76

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1.5x scale

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.