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Finding the Fourth Proportional to 478,302.48, 660,058.20 and 263,442.96

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Solution

The fourth proportional to 478,302.48, 660,058.20 and 263,442.96 is: 363,551.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,302.48 : 660,058.20 = 263,442.96 : x
  2. Step 2: Convert to fraction form
    478,302.48/660,058.20 = 263,442.96/x
  3. Step 3: Cross multiply
    478,302.48x = 660,058.20 × 263,442.96
  4. Step 4: Simplify right side
    478,302.48x = 173,887,685,980.27
  5. Step 5: Solve for x
    x = 173,887,685,980.27/478,302.48
  6. Step 6: Final answer
    x = 363,551.71

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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.