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Finding the Fourth Proportional to 183,428.40, 257,062.20 and 183,428.40

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Solution

The fourth proportional to 183,428.40, 257,062.20 and 183,428.40 is: 257,062.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,428.40 : 257,062.20 = 183,428.40 : x
  2. Step 2: Convert to fraction form
    183,428.40/257,062.20 = 183,428.40/x
  3. Step 3: Cross multiply
    183,428.40x = 257,062.20 × 183,428.40
  4. Step 4: Simplify right side
    183,428.40x = 47,152,508,046.48
  5. Step 5: Solve for x
    x = 47,152,508,046.48/183,428.40
  6. Step 6: Final answer
    x = 257,062.20

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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.