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Finding the Fourth Proportional to 571,162.76, 788,184.78 and 316,537.64

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Solution

The fourth proportional to 571,162.76, 788,184.78 and 316,537.64 is: 436,810.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,162.76 : 788,184.78 = 316,537.64 : x
  2. Step 2: Convert to fraction form
    571,162.76/788,184.78 = 316,537.64/x
  3. Step 3: Cross multiply
    571,162.76x = 788,184.78 × 316,537.64
  4. Step 4: Simplify right side
    571,162.76x = 249,490,150,145.12
  5. Step 5: Solve for x
    x = 249,490,150,145.12/571,162.76
  6. Step 6: Final answer
    x = 436,810.95

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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.