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Finding the Fourth Proportional to 539,903.30, 808,688.55 and 446,591.30

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Solution

The fourth proportional to 539,903.30, 808,688.55 and 446,591.30 is: 668,922.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,903.30 : 808,688.55 = 446,591.30 : x
  2. Step 2: Convert to fraction form
    539,903.30/808,688.55 = 446,591.30/x
  3. Step 3: Cross multiply
    539,903.30x = 808,688.55 × 446,591.30
  4. Step 4: Simplify right side
    539,903.30x = 361,153,270,839.62
  5. Step 5: Solve for x
    x = 361,153,270,839.62/539,903.30
  6. Step 6: Final answer
    x = 668,922.14

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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.