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Finding the Fourth Proportional to 548,369.44, 756,005.72 and 384,803.70

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Solution

The fourth proportional to 548,369.44, 756,005.72 and 384,803.70 is: 530,506.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,369.44 : 756,005.72 = 384,803.70 : x
  2. Step 2: Convert to fraction form
    548,369.44/756,005.72 = 384,803.70/x
  3. Step 3: Cross multiply
    548,369.44x = 756,005.72 × 384,803.70
  4. Step 4: Simplify right side
    548,369.44x = 290,913,798,277.16
  5. Step 5: Solve for x
    x = 290,913,798,277.16/548,369.44
  6. Step 6: Final answer
    x = 530,506.95

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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.