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Finding the Fourth Proportional to 570,761.08, 787,656.90 and 316,116.52

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Solution

The fourth proportional to 570,761.08, 787,656.90 and 316,116.52 is: 436,244.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,761.08 : 787,656.90 = 316,116.52 : x
  2. Step 2: Convert to fraction form
    570,761.08/787,656.90 = 316,116.52/x
  3. Step 3: Cross multiply
    570,761.08x = 787,656.90 × 316,116.52
  4. Step 4: Simplify right side
    570,761.08x = 248,991,358,181.99
  5. Step 5: Solve for x
    x = 248,991,358,181.99/570,761.08
  6. Step 6: Final answer
    x = 436,244.46

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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.