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Finding the Fourth Proportional to 539,078.70, 808,812.45 and 223,632.30

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Solution

The fourth proportional to 539,078.70, 808,812.45 and 223,632.30 is: 335,529.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,078.70 : 808,812.45 = 223,632.30 : x
  2. Step 2: Convert to fraction form
    539,078.70/808,812.45 = 223,632.30/x
  3. Step 3: Cross multiply
    539,078.70x = 808,812.45 × 223,632.30
  4. Step 4: Simplify right side
    539,078.70x = 180,876,588,462.14
  5. Step 5: Solve for x
    x = 180,876,588,462.14/539,078.70
  6. Step 6: Final answer
    x = 335,529.10

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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.