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Finding the Fourth Proportional to 315,262.45, 473,336.54 and 161,498.94

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Solution

The fourth proportional to 315,262.45, 473,336.54 and 161,498.94 is: 242,475.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,262.45 : 473,336.54 = 161,498.94 : x
  2. Step 2: Convert to fraction form
    315,262.45/473,336.54 = 161,498.94/x
  3. Step 3: Cross multiply
    315,262.45x = 473,336.54 × 161,498.94
  4. Step 4: Simplify right side
    315,262.45x = 76,443,349,473.27
  5. Step 5: Solve for x
    x = 76,443,349,473.27/315,262.45
  6. Step 6: Final answer
    x = 242,475.28

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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.