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Finding the Fourth Proportional to 219,007.76, 328,511.40 and 52,795.76

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Solution

The fourth proportional to 219,007.76, 328,511.40 and 52,795.76 is: 79,193.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,007.76 : 328,511.40 = 52,795.76 : x
  2. Step 2: Convert to fraction form
    219,007.76/328,511.40 = 52,795.76/x
  3. Step 3: Cross multiply
    219,007.76x = 328,511.40 × 52,795.76
  4. Step 4: Simplify right side
    219,007.76x = 17,344,009,031.66
  5. Step 5: Solve for x
    x = 17,344,009,031.66/219,007.76
  6. Step 6: Final answer
    x = 79,193.58

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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.