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Finding the Fourth Proportional to 570,859.40, 856,418.70 and 334,080.20

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Solution

The fourth proportional to 570,859.40, 856,418.70 and 334,080.20 is: 501,196.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,859.40 : 856,418.70 = 334,080.20 : x
  2. Step 2: Convert to fraction form
    570,859.40/856,418.70 = 334,080.20/x
  3. Step 3: Cross multiply
    570,859.40x = 856,418.70 × 334,080.20
  4. Step 4: Simplify right side
    570,859.40x = 286,112,530,579.74
  5. Step 5: Solve for x
    x = 286,112,530,579.74/570,859.40
  6. Step 6: Final answer
    x = 501,196.14

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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.