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Finding the Fourth Proportional to 556,786.53, 768,367.51 and 302,137.74

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Solution

The fourth proportional to 556,786.53, 768,367.51 and 302,137.74 is: 416,951.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,786.53 : 768,367.51 = 302,137.74 : x
  2. Step 2: Convert to fraction form
    556,786.53/768,367.51 = 302,137.74/x
  3. Step 3: Cross multiply
    556,786.53x = 768,367.51 × 302,137.74
  4. Step 4: Simplify right side
    556,786.53x = 232,152,822,205.48
  5. Step 5: Solve for x
    x = 232,152,822,205.48/556,786.53
  6. Step 6: Final answer
    x = 416,951.22

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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.