Home / 434,590.20-650,330.10-397,265.40

Finding the Fourth Proportional to 434,590.20, 650,330.10 and 397,265.40

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Solution

The fourth proportional to 434,590.20, 650,330.10 and 397,265.40 is: 594,476.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,590.20 : 650,330.10 = 397,265.40 : x
  2. Step 2: Convert to fraction form
    434,590.20/650,330.10 = 397,265.40/x
  3. Step 3: Cross multiply
    434,590.20x = 650,330.10 × 397,265.40
  4. Step 4: Simplify right side
    434,590.20x = 258,353,647,308.54
  5. Step 5: Solve for x
    x = 258,353,647,308.54/434,590.20
  6. Step 6: Final answer
    x = 594,476.47

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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.