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Finding the Fourth Proportional to 356,697.48, 492,247.98 and 213,463.56

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Solution

The fourth proportional to 356,697.48, 492,247.98 and 213,463.56 is: 294,582.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,697.48 : 492,247.98 = 213,463.56 : x
  2. Step 2: Convert to fraction form
    356,697.48/492,247.98 = 213,463.56/x
  3. Step 3: Cross multiply
    356,697.48x = 492,247.98 × 213,463.56
  4. Step 4: Simplify right side
    356,697.48x = 105,077,006,213.61
  5. Step 5: Solve for x
    x = 105,077,006,213.61/356,697.48
  6. Step 6: Final answer
    x = 294,582.98

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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.