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Finding the Fourth Proportional to 306,465.80, 459,828.30 and 194,232.20

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Solution

The fourth proportional to 306,465.80, 459,828.30 and 194,232.20 is: 291,430.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,465.80 : 459,828.30 = 194,232.20 : x
  2. Step 2: Convert to fraction form
    306,465.80/459,828.30 = 194,232.20/x
  3. Step 3: Cross multiply
    306,465.80x = 459,828.30 × 194,232.20
  4. Step 4: Simplify right side
    306,465.80x = 89,313,462,331.26
  5. Step 5: Solve for x
    x = 89,313,462,331.26/306,465.80
  6. Step 6: Final answer
    x = 291,430.44

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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.