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Finding the Fourth Proportional to 348,006.20, 522,009.30 and 208,038.20

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Solution

The fourth proportional to 348,006.20, 522,009.30 and 208,038.20 is: 312,057.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,006.20 : 522,009.30 = 208,038.20 : x
  2. Step 2: Convert to fraction form
    348,006.20/522,009.30 = 208,038.20/x
  3. Step 3: Cross multiply
    348,006.20x = 522,009.30 × 208,038.20
  4. Step 4: Simplify right side
    348,006.20x = 108,597,875,155.26
  5. Step 5: Solve for x
    x = 108,597,875,155.26/348,006.20
  6. Step 6: Final answer
    x = 312,057.30

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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.