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Finding the Fourth Proportional to 571,434.60, 859,128.30 and 534,433.80

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Solution

The fourth proportional to 571,434.60, 859,128.30 and 534,433.80 is: 803,499.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,434.60 : 859,128.30 = 534,433.80 : x
  2. Step 2: Convert to fraction form
    571,434.60/859,128.30 = 534,433.80/x
  3. Step 3: Cross multiply
    571,434.60x = 859,128.30 × 534,433.80
  4. Step 4: Simplify right side
    571,434.60x = 459,147,202,056.54
  5. Step 5: Solve for x
    x = 459,147,202,056.54/571,434.60
  6. Step 6: Final answer
    x = 803,499.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.