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Finding the Fourth Proportional to 400,459.95, 552,696.75 and 228,378.24

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Solution

The fourth proportional to 400,459.95, 552,696.75 and 228,378.24 is: 315,197.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,459.95 : 552,696.75 = 228,378.24 : x
  2. Step 2: Convert to fraction form
    400,459.95/552,696.75 = 228,378.24/x
  3. Step 3: Cross multiply
    400,459.95x = 552,696.75 × 228,378.24
  4. Step 4: Simplify right side
    400,459.95x = 126,223,911,018.72
  5. Step 5: Solve for x
    x = 126,223,911,018.72/400,459.95
  6. Step 6: Final answer
    x = 315,197.34

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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.