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Finding the Fourth Proportional to 535,584.40, 801,821.40 and 520,032.40

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Solution

The fourth proportional to 535,584.40, 801,821.40 and 520,032.40 is: 778,538.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,584.40 : 801,821.40 = 520,032.40 : x
  2. Step 2: Convert to fraction form
    535,584.40/801,821.40 = 520,032.40/x
  3. Step 3: Cross multiply
    535,584.40x = 801,821.40 × 520,032.40
  4. Step 4: Simplify right side
    535,584.40x = 416,973,107,013.36
  5. Step 5: Solve for x
    x = 416,973,107,013.36/535,584.40
  6. Step 6: Final answer
    x = 778,538.56

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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.