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Finding the Fourth Proportional to 261,969.92, 392,364.08 and 183,434.76

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Solution

The fourth proportional to 261,969.92, 392,364.08 and 183,434.76 is: 274,738.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,969.92 : 392,364.08 = 183,434.76 : x
  2. Step 2: Convert to fraction form
    261,969.92/392,364.08 = 183,434.76/x
  3. Step 3: Cross multiply
    261,969.92x = 392,364.08 × 183,434.76
  4. Step 4: Simplify right side
    261,969.92x = 71,973,210,847.42
  5. Step 5: Solve for x
    x = 71,973,210,847.42/261,969.92
  6. Step 6: Final answer
    x = 274,738.45

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1.5x scale

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.