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Finding the Fourth Proportional to 615,616.20, 923,424.30 and 349,895.70

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Solution

The fourth proportional to 615,616.20, 923,424.30 and 349,895.70 is: 524,843.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,616.20 : 923,424.30 = 349,895.70 : x
  2. Step 2: Convert to fraction form
    615,616.20/923,424.30 = 349,895.70/x
  3. Step 3: Cross multiply
    615,616.20x = 923,424.30 × 349,895.70
  4. Step 4: Simplify right side
    615,616.20x = 323,102,191,845.51
  5. Step 5: Solve for x
    x = 323,102,191,845.51/615,616.20
  6. Step 6: Final answer
    x = 524,843.55

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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.