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Finding the Fourth Proportional to 384,149.40, 575,489.70 and 206,597.40

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Solution

The fourth proportional to 384,149.40, 575,489.70 and 206,597.40 is: 309,501.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,149.40 : 575,489.70 = 206,597.40 : x
  2. Step 2: Convert to fraction form
    384,149.40/575,489.70 = 206,597.40/x
  3. Step 3: Cross multiply
    384,149.40x = 575,489.70 × 206,597.40
  4. Step 4: Simplify right side
    384,149.40x = 118,894,675,746.78
  5. Step 5: Solve for x
    x = 118,894,675,746.78/384,149.40
  6. Step 6: Final answer
    x = 309,501.14

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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.