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Finding the Fourth Proportional to 571,962.80, 857,944.20 and 508,977.20

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Solution

The fourth proportional to 571,962.80, 857,944.20 and 508,977.20 is: 763,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,962.80 : 857,944.20 = 508,977.20 : x
  2. Step 2: Convert to fraction form
    571,962.80/857,944.20 = 508,977.20/x
  3. Step 3: Cross multiply
    571,962.80x = 857,944.20 × 508,977.20
  4. Step 4: Simplify right side
    571,962.80x = 436,674,036,672.24
  5. Step 5: Solve for x
    x = 436,674,036,672.24/571,962.80
  6. Step 6: Final answer
    x = 763,465.80

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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.