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Finding the Fourth Proportional to 359,699.76, 496,584.54 and 216,495

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Solution

The fourth proportional to 359,699.76, 496,584.54 and 216,495 is: 298,882.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,699.76 : 496,584.54 = 216,495 : x
  2. Step 2: Convert to fraction form
    359,699.76/496,584.54 = 216,495/x
  3. Step 3: Cross multiply
    359,699.76x = 496,584.54 × 216,495
  4. Step 4: Simplify right side
    359,699.76x = 107,508,069,987.30
  5. Step 5: Solve for x
    x = 107,508,069,987.30/359,699.76
  6. Step 6: Final answer
    x = 298,882.80

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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.