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Finding the Fourth Proportional to 523,455.05, 722,316.95 and 293,960.15

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Solution

The fourth proportional to 523,455.05, 722,316.95 and 293,960.15 is: 405,636.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,455.05 : 722,316.95 = 293,960.15 : x
  2. Step 2: Convert to fraction form
    523,455.05/722,316.95 = 293,960.15/x
  3. Step 3: Cross multiply
    523,455.05x = 722,316.95 × 293,960.15
  4. Step 4: Simplify right side
    523,455.05x = 212,332,398,969.54
  5. Step 5: Solve for x
    x = 212,332,398,969.54/523,455.05
  6. Step 6: Final answer
    x = 405,636.36

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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.