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Finding the Fourth Proportional to 359,666.58, 496,035.18 and 216,399.87

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Solution

The fourth proportional to 359,666.58, 496,035.18 and 216,399.87 is: 298,448.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,666.58 : 496,035.18 = 216,399.87 : x
  2. Step 2: Convert to fraction form
    359,666.58/496,035.18 = 216,399.87/x
  3. Step 3: Cross multiply
    359,666.58x = 496,035.18 × 216,399.87
  4. Step 4: Simplify right side
    359,666.58x = 107,341,948,467.43
  5. Step 5: Solve for x
    x = 107,341,948,467.43/359,666.58
  6. Step 6: Final answer
    x = 298,448.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.