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Finding the Fourth Proportional to 348,059.70, 522,089.55 and 208,091.70

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Solution

The fourth proportional to 348,059.70, 522,089.55 and 208,091.70 is: 312,137.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,059.70 : 522,089.55 = 208,091.70 : x
  2. Step 2: Convert to fraction form
    348,059.70/522,089.55 = 208,091.70/x
  3. Step 3: Cross multiply
    348,059.70x = 522,089.55 × 208,091.70
  4. Step 4: Simplify right side
    348,059.70x = 108,642,502,011.74
  5. Step 5: Solve for x
    x = 108,642,502,011.74/348,059.70
  6. Step 6: Final answer
    x = 312,137.55

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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.