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Finding the Fourth Proportional to 373,678.38, 515,518.92 and 260,566.74

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Solution

The fourth proportional to 373,678.38, 515,518.92 and 260,566.74 is: 359,472.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,678.38 : 515,518.92 = 260,566.74 : x
  2. Step 2: Convert to fraction form
    373,678.38/515,518.92 = 260,566.74/x
  3. Step 3: Cross multiply
    373,678.38x = 515,518.92 × 260,566.74
  4. Step 4: Simplify right side
    373,678.38x = 134,327,084,392.72
  5. Step 5: Solve for x
    x = 134,327,084,392.72/373,678.38
  6. Step 6: Final answer
    x = 359,472.45

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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.