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Finding the Fourth Proportional to 403,816.20, 604,412.10 and 403,816.20

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Solution

The fourth proportional to 403,816.20, 604,412.10 and 403,816.20 is: 604,412.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,816.20 : 604,412.10 = 403,816.20 : x
  2. Step 2: Convert to fraction form
    403,816.20/604,412.10 = 403,816.20/x
  3. Step 3: Cross multiply
    403,816.20x = 604,412.10 × 403,816.20
  4. Step 4: Simplify right side
    403,816.20x = 244,071,397,456.02
  5. Step 5: Solve for x
    x = 244,071,397,456.02/403,816.20
  6. Step 6: Final answer
    x = 604,412.10

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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.