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Finding the Fourth Proportional to 493,108.80, 680,487.84 and 266,752.32

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Solution

The fourth proportional to 493,108.80, 680,487.84 and 266,752.32 is: 368,116.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,108.80 : 680,487.84 = 266,752.32 : x
  2. Step 2: Convert to fraction form
    493,108.80/680,487.84 = 266,752.32/x
  3. Step 3: Cross multiply
    493,108.80x = 680,487.84 × 266,752.32
  4. Step 4: Simplify right side
    493,108.80x = 181,521,710,051.79
  5. Step 5: Solve for x
    x = 181,521,710,051.79/493,108.80
  6. Step 6: Final answer
    x = 368,116.96

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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.