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Finding the Fourth Proportional to 571,435.60, 859,129.80 and 534,434.80

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Solution

The fourth proportional to 571,435.60, 859,129.80 and 534,434.80 is: 803,500.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,435.60 : 859,129.80 = 534,434.80 : x
  2. Step 2: Convert to fraction form
    571,435.60/859,129.80 = 534,434.80/x
  3. Step 3: Cross multiply
    571,435.60x = 859,129.80 × 534,434.80
  4. Step 4: Simplify right side
    571,435.60x = 459,148,862,837.04
  5. Step 5: Solve for x
    x = 459,148,862,837.04/571,435.60
  6. Step 6: Final answer
    x = 803,500.63

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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.