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Finding the Fourth Proportional to 570,837.44, 787,808.98 and 316,188.82

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Solution

The fourth proportional to 570,837.44, 787,808.98 and 316,188.82 is: 436,370.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,837.44 : 787,808.98 = 316,188.82 : x
  2. Step 2: Convert to fraction form
    570,837.44/787,808.98 = 316,188.82/x
  3. Step 3: Cross multiply
    570,837.44x = 787,808.98 × 316,188.82
  4. Step 4: Simplify right side
    570,837.44x = 249,096,391,771.60
  5. Step 5: Solve for x
    x = 249,096,391,771.60/570,837.44
  6. Step 6: Final answer
    x = 436,370.10

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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.