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Finding the Fourth Proportional to 571,270.52, 788,353.96 and 316,621.92

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Solution

The fourth proportional to 571,270.52, 788,353.96 and 316,621.92 is: 436,938.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,270.52 : 788,353.96 = 316,621.92 : x
  2. Step 2: Convert to fraction form
    571,270.52/788,353.96 = 316,621.92/x
  3. Step 3: Cross multiply
    571,270.52x = 788,353.96 × 316,621.92
  4. Step 4: Simplify right side
    571,270.52x = 249,610,144,454.80
  5. Step 5: Solve for x
    x = 249,610,144,454.80/571,270.52
  6. Step 6: Final answer
    x = 436,938.61

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1.5x scale

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.