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Finding the Fourth Proportional to 540,390.83, 745,777.95 and 298,668.20

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Solution

The fourth proportional to 540,390.83, 745,777.95 and 298,668.20 is: 412,183.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,390.83 : 745,777.95 = 298,668.20 : x
  2. Step 2: Convert to fraction form
    540,390.83/745,777.95 = 298,668.20/x
  3. Step 3: Cross multiply
    540,390.83x = 745,777.95 × 298,668.20
  4. Step 4: Simplify right side
    540,390.83x = 222,740,154,197.30
  5. Step 5: Solve for x
    x = 222,740,154,197.30/540,390.83
  6. Step 6: Final answer
    x = 412,183.45

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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.