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Finding the Fourth Proportional to 571,367.25, 788,487.53 and 316,756.53

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Solution

The fourth proportional to 571,367.25, 788,487.53 and 316,756.53 is: 437,124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,367.25 : 788,487.53 = 316,756.53 : x
  2. Step 2: Convert to fraction form
    571,367.25/788,487.53 = 316,756.53/x
  3. Step 3: Cross multiply
    571,367.25x = 788,487.53 × 316,756.53
  4. Step 4: Simplify right side
    571,367.25x = 249,758,572,367.29
  5. Step 5: Solve for x
    x = 249,758,572,367.29/571,367.25
  6. Step 6: Final answer
    x = 437,124.41

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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.