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Finding the Fourth Proportional to 261,718.40, 367,235.20 and 261,718.40

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Solution

The fourth proportional to 261,718.40, 367,235.20 and 261,718.40 is: 367,235.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,718.40 : 367,235.20 = 261,718.40 : x
  2. Step 2: Convert to fraction form
    261,718.40/367,235.20 = 261,718.40/x
  3. Step 3: Cross multiply
    261,718.40x = 367,235.20 × 261,718.40
  4. Step 4: Simplify right side
    261,718.40x = 96,112,208,967.68
  5. Step 5: Solve for x
    x = 96,112,208,967.68/261,718.40
  6. Step 6: Final answer
    x = 367,235.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.