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Finding the Fourth Proportional to 461,490.80, 692,545.80 and 161,970.80

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Solution

The fourth proportional to 461,490.80, 692,545.80 and 161,970.80 is: 243,064.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,490.80 : 692,545.80 = 161,970.80 : x
  2. Step 2: Convert to fraction form
    461,490.80/692,545.80 = 161,970.80/x
  3. Step 3: Cross multiply
    461,490.80x = 692,545.80 × 161,970.80
  4. Step 4: Simplify right side
    461,490.80x = 112,172,197,262.64
  5. Step 5: Solve for x
    x = 112,172,197,262.64/461,490.80
  6. Step 6: Final answer
    x = 243,064.86

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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.