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Finding the Fourth Proportional to 351,016.80, 526,525.20 and 307,714.20

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Solution

The fourth proportional to 351,016.80, 526,525.20 and 307,714.20 is: 461,571.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,016.80 : 526,525.20 = 307,714.20 : x
  2. Step 2: Convert to fraction form
    351,016.80/526,525.20 = 307,714.20/x
  3. Step 3: Cross multiply
    351,016.80x = 526,525.20 × 307,714.20
  4. Step 4: Simplify right side
    351,016.80x = 162,019,280,697.84
  5. Step 5: Solve for x
    x = 162,019,280,697.84/351,016.80
  6. Step 6: Final answer
    x = 461,571.30

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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.