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Finding the Fourth Proportional to 230,909.80, 346,364.70 and 216,038.20

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Solution

The fourth proportional to 230,909.80, 346,364.70 and 216,038.20 is: 324,057.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,909.80 : 346,364.70 = 216,038.20 : x
  2. Step 2: Convert to fraction form
    230,909.80/346,364.70 = 216,038.20/x
  3. Step 3: Cross multiply
    230,909.80x = 346,364.70 × 216,038.20
  4. Step 4: Simplify right side
    230,909.80x = 74,828,006,331.54
  5. Step 5: Solve for x
    x = 74,828,006,331.54/230,909.80
  6. Step 6: Final answer
    x = 324,057.30

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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.