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Finding the Fourth Proportional to 663,183.60, 915,611.44 and 470,001.04

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Solution

The fourth proportional to 663,183.60, 915,611.44 and 470,001.04 is: 648,897.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,183.60 : 915,611.44 = 470,001.04 : x
  2. Step 2: Convert to fraction form
    663,183.60/915,611.44 = 470,001.04/x
  3. Step 3: Cross multiply
    663,183.60x = 915,611.44 × 470,001.04
  4. Step 4: Simplify right side
    663,183.60x = 430,338,329,035.90
  5. Step 5: Solve for x
    x = 430,338,329,035.90/663,183.60
  6. Step 6: Final answer
    x = 648,897.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.