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Finding the Fourth Proportional to 570,764.40, 856,276.20 and 333,985.20

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Solution

The fourth proportional to 570,764.40, 856,276.20 and 333,985.20 is: 501,053.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,764.40 : 856,276.20 = 333,985.20 : x
  2. Step 2: Convert to fraction form
    570,764.40/856,276.20 = 333,985.20/x
  3. Step 3: Cross multiply
    570,764.40x = 856,276.20 × 333,985.20
  4. Step 4: Simplify right side
    570,764.40x = 285,983,577,912.24
  5. Step 5: Solve for x
    x = 285,983,577,912.24/570,764.40
  6. Step 6: Final answer
    x = 501,053.64

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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.