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Finding the Fourth Proportional to 369,125.20, 517,125.20 and 369,125.20

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Solution

The fourth proportional to 369,125.20, 517,125.20 and 369,125.20 is: 517,125.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,125.20 : 517,125.20 = 369,125.20 : x
  2. Step 2: Convert to fraction form
    369,125.20/517,125.20 = 369,125.20/x
  3. Step 3: Cross multiply
    369,125.20x = 517,125.20 × 369,125.20
  4. Step 4: Simplify right side
    369,125.20x = 190,883,942,875.04
  5. Step 5: Solve for x
    x = 190,883,942,875.04/369,125.20
  6. Step 6: Final answer
    x = 517,125.20

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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.