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Finding the Fourth Proportional to 364,900.86, 547,127.73 and 128,270.70

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Solution

The fourth proportional to 364,900.86, 547,127.73 and 128,270.70 is: 192,327.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,900.86 : 547,127.73 = 128,270.70 : x
  2. Step 2: Convert to fraction form
    364,900.86/547,127.73 = 128,270.70/x
  3. Step 3: Cross multiply
    364,900.86x = 547,127.73 × 128,270.70
  4. Step 4: Simplify right side
    364,900.86x = 70,180,456,916.51
  5. Step 5: Solve for x
    x = 70,180,456,916.51/364,900.86
  6. Step 6: Final answer
    x = 192,327.46

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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.