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Finding the Fourth Proportional to 470,173.48, 648,800.90 and 258,205.48

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Solution

The fourth proportional to 470,173.48, 648,800.90 and 258,205.48 is: 356,302.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,173.48 : 648,800.90 = 258,205.48 : x
  2. Step 2: Convert to fraction form
    470,173.48/648,800.90 = 258,205.48/x
  3. Step 3: Cross multiply
    470,173.48x = 648,800.90 × 258,205.48
  4. Step 4: Simplify right side
    470,173.48x = 167,523,947,808.93
  5. Step 5: Solve for x
    x = 167,523,947,808.93/470,173.48
  6. Step 6: Final answer
    x = 356,302.42

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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.