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Finding the Fourth Proportional to 662,109.20, 993,574.20 and 346,792.40

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Solution

The fourth proportional to 662,109.20, 993,574.20 and 346,792.40 is: 520,403.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,109.20 : 993,574.20 = 346,792.40 : x
  2. Step 2: Convert to fraction form
    662,109.20/993,574.20 = 346,792.40/x
  3. Step 3: Cross multiply
    662,109.20x = 993,574.20 × 346,792.40
  4. Step 4: Simplify right side
    662,109.20x = 344,563,981,396.08
  5. Step 5: Solve for x
    x = 344,563,981,396.08/662,109.20
  6. Step 6: Final answer
    x = 520,403.55

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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.