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Finding the Fourth Proportional to 483,560.16, 720,480 and 456,396.96

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Solution

The fourth proportional to 483,560.16, 720,480 and 456,396.96 is: 680,008.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,560.16 : 720,480 = 456,396.96 : x
  2. Step 2: Convert to fraction form
    483,560.16/720,480 = 456,396.96/x
  3. Step 3: Cross multiply
    483,560.16x = 720,480 × 456,396.96
  4. Step 4: Simplify right side
    483,560.16x = 328,824,881,740.80
  5. Step 5: Solve for x
    x = 328,824,881,740.80/483,560.16
  6. Step 6: Final answer
    x = 680,008.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.