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Finding the Fourth Proportional to 576,267.12, 863,700.80 and 407,836.67

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Solution

The fourth proportional to 576,267.12, 863,700.80 and 407,836.67 is: 611,259.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,267.12 : 863,700.80 = 407,836.67 : x
  2. Step 2: Convert to fraction form
    576,267.12/863,700.80 = 407,836.67/x
  3. Step 3: Cross multiply
    576,267.12x = 863,700.80 × 407,836.67
  4. Step 4: Simplify right side
    576,267.12x = 352,248,851,790.65
  5. Step 5: Solve for x
    x = 352,248,851,790.65/576,267.12
  6. Step 6: Final answer
    x = 611,259.67

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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.