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Finding the Fourth Proportional to 570,858.48, 787,785.48 and 316,208.88

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Solution

The fourth proportional to 570,858.48, 787,785.48 and 316,208.88 is: 436,368.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,858.48 : 787,785.48 = 316,208.88 : x
  2. Step 2: Convert to fraction form
    570,858.48/787,785.48 = 316,208.88/x
  3. Step 3: Cross multiply
    570,858.48x = 787,785.48 × 316,208.88
  4. Step 4: Simplify right side
    570,858.48x = 249,104,764,311.06
  5. Step 5: Solve for x
    x = 249,104,764,311.06/570,858.48
  6. Step 6: Final answer
    x = 436,368.69

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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.