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Finding the Fourth Proportional to 535,636.40, 801,899.40 and 520,084.40

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Solution

The fourth proportional to 535,636.40, 801,899.40 and 520,084.40 is: 778,616.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,636.40 : 801,899.40 = 520,084.40 : x
  2. Step 2: Convert to fraction form
    535,636.40/801,899.40 = 520,084.40/x
  3. Step 3: Cross multiply
    535,636.40x = 801,899.40 × 520,084.40
  4. Step 4: Simplify right side
    535,636.40x = 417,055,368,309.36
  5. Step 5: Solve for x
    x = 417,055,368,309.36/535,636.40
  6. Step 6: Final answer
    x = 778,616.55

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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.