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Finding the Fourth Proportional to 261,664.40, 392,496.60 and 261,664.40

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Solution

The fourth proportional to 261,664.40, 392,496.60 and 261,664.40 is: 392,496.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,664.40 : 392,496.60 = 261,664.40 : x
  2. Step 2: Convert to fraction form
    261,664.40/392,496.60 = 261,664.40/x
  3. Step 3: Cross multiply
    261,664.40x = 392,496.60 × 261,664.40
  4. Step 4: Simplify right side
    261,664.40x = 102,702,387,341.04
  5. Step 5: Solve for x
    x = 102,702,387,341.04/261,664.40
  6. Step 6: Final answer
    x = 392,496.60

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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.