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Finding the Fourth Proportional to 571,505.04, 788,673.24 and 316,856.16

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Solution

The fourth proportional to 571,505.04, 788,673.24 and 316,856.16 is: 437,259.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,505.04 : 788,673.24 = 316,856.16 : x
  2. Step 2: Convert to fraction form
    571,505.04/788,673.24 = 316,856.16/x
  3. Step 3: Cross multiply
    571,505.04x = 788,673.24 × 316,856.16
  4. Step 4: Simplify right side
    571,505.04x = 249,895,974,321.16
  5. Step 5: Solve for x
    x = 249,895,974,321.16/571,505.04
  6. Step 6: Final answer
    x = 437,259.44

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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.