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Finding the Fourth Proportional to 228,740.70, 319,614.90 and 228,740.70

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Solution

The fourth proportional to 228,740.70, 319,614.90 and 228,740.70 is: 319,614.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,740.70 : 319,614.90 = 228,740.70 : x
  2. Step 2: Convert to fraction form
    228,740.70/319,614.90 = 228,740.70/x
  3. Step 3: Cross multiply
    228,740.70x = 319,614.90 × 228,740.70
  4. Step 4: Simplify right side
    228,740.70x = 73,108,935,956.43
  5. Step 5: Solve for x
    x = 73,108,935,956.43/228,740.70
  6. Step 6: Final answer
    x = 319,614.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.