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Finding the Fourth Proportional to 571,356.24, 788,388.84 and 316,707.36

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Solution

The fourth proportional to 571,356.24, 788,388.84 and 316,707.36 is: 437,010.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,356.24 : 788,388.84 = 316,707.36 : x
  2. Step 2: Convert to fraction form
    571,356.24/788,388.84 = 316,707.36/x
  3. Step 3: Cross multiply
    571,356.24x = 788,388.84 × 316,707.36
  4. Step 4: Simplify right side
    571,356.24x = 249,688,548,169.86
  5. Step 5: Solve for x
    x = 249,688,548,169.86/571,356.24
  6. Step 6: Final answer
    x = 437,010.28

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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.