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Finding the Fourth Proportional to 349,376.80, 524,065.20 and 310,669.60

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Solution

The fourth proportional to 349,376.80, 524,065.20 and 310,669.60 is: 466,004.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,376.80 : 524,065.20 = 310,669.60 : x
  2. Step 2: Convert to fraction form
    349,376.80/524,065.20 = 310,669.60/x
  3. Step 3: Cross multiply
    349,376.80x = 524,065.20 × 310,669.60
  4. Step 4: Simplify right side
    349,376.80x = 162,811,126,057.92
  5. Step 5: Solve for x
    x = 162,811,126,057.92/349,376.80
  6. Step 6: Final answer
    x = 466,004.40

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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.