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Finding the Fourth Proportional to 369,578.60, 510,018.41 and 199,812.72

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Solution

The fourth proportional to 369,578.60, 510,018.41 and 199,812.72 is: 275,741.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,578.60 : 510,018.41 = 199,812.72 : x
  2. Step 2: Convert to fraction form
    369,578.60/510,018.41 = 199,812.72/x
  3. Step 3: Cross multiply
    369,578.60x = 510,018.41 × 199,812.72
  4. Step 4: Simplify right side
    369,578.60x = 101,908,164,753.11
  5. Step 5: Solve for x
    x = 101,908,164,753.11/369,578.60
  6. Step 6: Final answer
    x = 275,741.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.