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Finding the Fourth Proportional to 470,215.92, 648,905.49 and 266,261.34

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Solution

The fourth proportional to 470,215.92, 648,905.49 and 266,261.34 is: 367,444.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,215.92 : 648,905.49 = 266,261.34 : x
  2. Step 2: Convert to fraction form
    470,215.92/648,905.49 = 266,261.34/x
  3. Step 3: Cross multiply
    470,215.92x = 648,905.49 × 266,261.34
  4. Step 4: Simplify right side
    470,215.92x = 172,778,445,300.76
  5. Step 5: Solve for x
    x = 172,778,445,300.76/470,215.92
  6. Step 6: Final answer
    x = 367,444.91

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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.