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Finding the Fourth Proportional to 603,572.72, 832,618.02 and 409,990.40

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Solution

The fourth proportional to 603,572.72, 832,618.02 and 409,990.40 is: 565,574.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,572.72 : 832,618.02 = 409,990.40 : x
  2. Step 2: Convert to fraction form
    603,572.72/832,618.02 = 409,990.40/x
  3. Step 3: Cross multiply
    603,572.72x = 832,618.02 × 409,990.40
  4. Step 4: Simplify right side
    603,572.72x = 341,365,395,067.01
  5. Step 5: Solve for x
    x = 341,365,395,067.01/603,572.72
  6. Step 6: Final answer
    x = 565,574.59

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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.