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Finding the Fourth Proportional to 348,058.70, 522,088.05 and 208,090.70

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Solution

The fourth proportional to 348,058.70, 522,088.05 and 208,090.70 is: 312,136.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,058.70 : 522,088.05 = 208,090.70 : x
  2. Step 2: Convert to fraction form
    348,058.70/522,088.05 = 208,090.70/x
  3. Step 3: Cross multiply
    348,058.70x = 522,088.05 × 208,090.70
  4. Step 4: Simplify right side
    348,058.70x = 108,641,667,786.14
  5. Step 5: Solve for x
    x = 108,641,667,786.14/348,058.70
  6. Step 6: Final answer
    x = 312,136.05

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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.