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Finding the Fourth Proportional to 473,485.92, 653,403.48 and 258,621.60

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Solution

The fourth proportional to 473,485.92, 653,403.48 and 258,621.60 is: 356,893.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,485.92 : 653,403.48 = 258,621.60 : x
  2. Step 2: Convert to fraction form
    473,485.92/653,403.48 = 258,621.60/x
  3. Step 3: Cross multiply
    473,485.92x = 653,403.48 × 258,621.60
  4. Step 4: Simplify right side
    473,485.92x = 168,984,253,443.17
  5. Step 5: Solve for x
    x = 168,984,253,443.17/473,485.92
  6. Step 6: Final answer
    x = 356,893.94

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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.