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Finding the Fourth Proportional to 565,714.20, 780,491.34 and 350,776.92

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Solution

The fourth proportional to 565,714.20, 780,491.34 and 350,776.92 is: 483,951.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,714.20 : 780,491.34 = 350,776.92 : x
  2. Step 2: Convert to fraction form
    565,714.20/780,491.34 = 350,776.92/x
  3. Step 3: Cross multiply
    565,714.20x = 780,491.34 × 350,776.92
  4. Step 4: Simplify right side
    565,714.20x = 273,778,348,331.87
  5. Step 5: Solve for x
    x = 273,778,348,331.87/565,714.20
  6. Step 6: Final answer
    x = 483,951.70

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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.