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Finding the Fourth Proportional to 369,366.41, 509,733.45 and 208,221.48

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Solution

The fourth proportional to 369,366.41, 509,733.45 and 208,221.48 is: 287,350.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,366.41 : 509,733.45 = 208,221.48 : x
  2. Step 2: Convert to fraction form
    369,366.41/509,733.45 = 208,221.48/x
  3. Step 3: Cross multiply
    369,366.41x = 509,733.45 × 208,221.48
  4. Step 4: Simplify right side
    369,366.41x = 106,137,453,364.51
  5. Step 5: Solve for x
    x = 106,137,453,364.51/369,366.41
  6. Step 6: Final answer
    x = 287,350.05

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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.