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Finding the Fourth Proportional to 348,006.60, 522,009.90 and 243,030.60

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Solution

The fourth proportional to 348,006.60, 522,009.90 and 243,030.60 is: 364,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,006.60 : 522,009.90 = 243,030.60 : x
  2. Step 2: Convert to fraction form
    348,006.60/522,009.90 = 243,030.60/x
  3. Step 3: Cross multiply
    348,006.60x = 522,009.90 × 243,030.60
  4. Step 4: Simplify right side
    348,006.60x = 126,864,379,202.94
  5. Step 5: Solve for x
    x = 126,864,379,202.94/348,006.60
  6. Step 6: Final answer
    x = 364,545.90

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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.