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Finding the Fourth Proportional to 570,774.13, 787,658.64 and 316,119.85

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Solution

The fourth proportional to 570,774.13, 787,658.64 and 316,119.85 is: 436,240.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,774.13 : 787,658.64 = 316,119.85 : x
  2. Step 2: Convert to fraction form
    570,774.13/787,658.64 = 316,119.85/x
  3. Step 3: Cross multiply
    570,774.13x = 787,658.64 × 316,119.85
  4. Step 4: Simplify right side
    570,774.13x = 248,994,531,128.00
  5. Step 5: Solve for x
    x = 248,994,531,128.00/570,774.13
  6. Step 6: Final answer
    x = 436,240.04

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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.