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Finding the Fourth Proportional to 341,838.80, 512,412.60 and 154,984.40

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Solution

The fourth proportional to 341,838.80, 512,412.60 and 154,984.40 is: 232,319.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,838.80 : 512,412.60 = 154,984.40 : x
  2. Step 2: Convert to fraction form
    341,838.80/512,412.60 = 154,984.40/x
  3. Step 3: Cross multiply
    341,838.80x = 512,412.60 × 154,984.40
  4. Step 4: Simplify right side
    341,838.80x = 79,415,959,363.44
  5. Step 5: Solve for x
    x = 79,415,959,363.44/341,838.80
  6. Step 6: Final answer
    x = 232,319.91

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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.