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Finding the Fourth Proportional to 448,315.76, 672,342.41 and 369,233.84

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Solution

The fourth proportional to 448,315.76, 672,342.41 and 369,233.84 is: 553,742.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,315.76 : 672,342.41 = 369,233.84 : x
  2. Step 2: Convert to fraction form
    448,315.76/672,342.41 = 369,233.84/x
  3. Step 3: Cross multiply
    448,315.76x = 672,342.41 × 369,233.84
  4. Step 4: Simplify right side
    448,315.76x = 248,251,564,631.27
  5. Step 5: Solve for x
    x = 248,251,564,631.27/448,315.76
  6. Step 6: Final answer
    x = 553,742.67

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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.