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Finding the Fourth Proportional to 570,070.46, 786,354.46 and 376,479.96

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Solution

The fourth proportional to 570,070.46, 786,354.46 and 376,479.96 is: 519,315.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,070.46 : 786,354.46 = 376,479.96 : x
  2. Step 2: Convert to fraction form
    570,070.46/786,354.46 = 376,479.96/x
  3. Step 3: Cross multiply
    570,070.46x = 786,354.46 × 376,479.96
  4. Step 4: Simplify right side
    570,070.46x = 296,046,695,646.62
  5. Step 5: Solve for x
    x = 296,046,695,646.62/570,070.46
  6. Step 6: Final answer
    x = 519,315.97

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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.