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Finding the Fourth Proportional to 570,659.08, 787,508.82 and 316,009.96

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Solution

The fourth proportional to 570,659.08, 787,508.82 and 316,009.96 is: 436,093.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,659.08 : 787,508.82 = 316,009.96 : x
  2. Step 2: Convert to fraction form
    570,659.08/787,508.82 = 316,009.96/x
  3. Step 3: Cross multiply
    570,659.08x = 787,508.82 × 316,009.96
  4. Step 4: Simplify right side
    570,659.08x = 248,860,630,707.85
  5. Step 5: Solve for x
    x = 248,860,630,707.85/570,659.08
  6. Step 6: Final answer
    x = 436,093.35

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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.