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Finding the Fourth Proportional to 384,421.90, 576,632.85 and 366,925.90

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Solution

The fourth proportional to 384,421.90, 576,632.85 and 366,925.90 is: 550,388.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,421.90 : 576,632.85 = 366,925.90 : x
  2. Step 2: Convert to fraction form
    384,421.90/576,632.85 = 366,925.90/x
  3. Step 3: Cross multiply
    384,421.90x = 576,632.85 × 366,925.90
  4. Step 4: Simplify right side
    384,421.90x = 211,581,527,455.82
  5. Step 5: Solve for x
    x = 211,581,527,455.82/384,421.90
  6. Step 6: Final answer
    x = 550,388.85

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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.