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Finding the Fourth Proportional to 316,309.37, 474,415.35 and 103,076.77

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Solution

The fourth proportional to 316,309.37, 474,415.35 and 103,076.77 is: 154,599.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,309.37 : 474,415.35 = 103,076.77 : x
  2. Step 2: Convert to fraction form
    316,309.37/474,415.35 = 103,076.77/x
  3. Step 3: Cross multiply
    316,309.37x = 474,415.35 × 103,076.77
  4. Step 4: Simplify right side
    316,309.37x = 48,901,201,233.37
  5. Step 5: Solve for x
    x = 48,901,201,233.37/316,309.37
  6. Step 6: Final answer
    x = 154,599.28

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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.