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Finding the Fourth Proportional to 306,053.40, 459,080.10 and 223,109.40

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Solution

The fourth proportional to 306,053.40, 459,080.10 and 223,109.40 is: 334,664.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,053.40 : 459,080.10 = 223,109.40 : x
  2. Step 2: Convert to fraction form
    306,053.40/459,080.10 = 223,109.40/x
  3. Step 3: Cross multiply
    306,053.40x = 459,080.10 × 223,109.40
  4. Step 4: Simplify right side
    306,053.40x = 102,425,085,662.94
  5. Step 5: Solve for x
    x = 102,425,085,662.94/306,053.40
  6. Step 6: Final answer
    x = 334,664.10

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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.