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Finding the Fourth Proportional to 432,875.80, 649,313.70 and 255,467.80

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Solution

The fourth proportional to 432,875.80, 649,313.70 and 255,467.80 is: 383,201.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,875.80 : 649,313.70 = 255,467.80 : x
  2. Step 2: Convert to fraction form
    432,875.80/649,313.70 = 255,467.80/x
  3. Step 3: Cross multiply
    432,875.80x = 649,313.70 × 255,467.80
  4. Step 4: Simplify right side
    432,875.80x = 165,878,742,448.86
  5. Step 5: Solve for x
    x = 165,878,742,448.86/432,875.80
  6. Step 6: Final answer
    x = 383,201.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.