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Finding the Fourth Proportional to 475,525.20, 656,220.60 and 260,664.60

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Solution

The fourth proportional to 475,525.20, 656,220.60 and 260,664.60 is: 359,714.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,525.20 : 656,220.60 = 260,664.60 : x
  2. Step 2: Convert to fraction form
    475,525.20/656,220.60 = 260,664.60/x
  3. Step 3: Cross multiply
    475,525.20x = 656,220.60 × 260,664.60
  4. Step 4: Simplify right side
    475,525.20x = 171,053,480,210.76
  5. Step 5: Solve for x
    x = 171,053,480,210.76/475,525.20
  6. Step 6: Final answer
    x = 359,714.86

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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.