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Finding the Fourth Proportional to 369,112.70, 553,669.05 and 200,713.70

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Solution

The fourth proportional to 369,112.70, 553,669.05 and 200,713.70 is: 301,070.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,112.70 : 553,669.05 = 200,713.70 : x
  2. Step 2: Convert to fraction form
    369,112.70/553,669.05 = 200,713.70/x
  3. Step 3: Cross multiply
    369,112.70x = 553,669.05 × 200,713.70
  4. Step 4: Simplify right side
    369,112.70x = 111,128,963,600.99
  5. Step 5: Solve for x
    x = 111,128,963,600.99/369,112.70
  6. Step 6: Final answer
    x = 301,070.55

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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.