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Finding the Fourth Proportional to 548,333.36, 756,695.76 and 306,616.40

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Solution

The fourth proportional to 548,333.36, 756,695.76 and 306,616.40 is: 423,128.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,333.36 : 756,695.76 = 306,616.40 : x
  2. Step 2: Convert to fraction form
    548,333.36/756,695.76 = 306,616.40/x
  3. Step 3: Cross multiply
    548,333.36x = 756,695.76 × 306,616.40
  4. Step 4: Simplify right side
    548,333.36x = 232,015,329,826.46
  5. Step 5: Solve for x
    x = 232,015,329,826.46/548,333.36
  6. Step 6: Final answer
    x = 423,128.24

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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.