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Finding the Fourth Proportional to 349,740.40, 524,740.20 and 336,780.40

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Solution

The fourth proportional to 349,740.40, 524,740.20 and 336,780.40 is: 505,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,740.40 : 524,740.20 = 336,780.40 : x
  2. Step 2: Convert to fraction form
    349,740.40/524,740.20 = 336,780.40/x
  3. Step 3: Cross multiply
    349,740.40x = 524,740.20 × 336,780.40
  4. Step 4: Simplify right side
    349,740.40x = 176,722,214,452.08
  5. Step 5: Solve for x
    x = 176,722,214,452.08/349,740.40
  6. Step 6: Final answer
    x = 505,295.40

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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.