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Finding the Fourth Proportional to 722,015.48, 996,548.82 and 480,308.24

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Solution

The fourth proportional to 722,015.48, 996,548.82 and 480,308.24 is: 662,936.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,015.48 : 996,548.82 = 480,308.24 : x
  2. Step 2: Convert to fraction form
    722,015.48/996,548.82 = 480,308.24/x
  3. Step 3: Cross multiply
    722,015.48x = 996,548.82 × 480,308.24
  4. Step 4: Simplify right side
    722,015.48x = 478,650,609,808.28
  5. Step 5: Solve for x
    x = 478,650,609,808.28/722,015.48
  6. Step 6: Final answer
    x = 662,936.77

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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.