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Finding the Fourth Proportional to 535,595.90, 801,838.65 and 520,043.90

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Solution

The fourth proportional to 535,595.90, 801,838.65 and 520,043.90 is: 778,555.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,595.90 : 801,838.65 = 520,043.90 : x
  2. Step 2: Convert to fraction form
    535,595.90/801,838.65 = 520,043.90/x
  3. Step 3: Cross multiply
    535,595.90x = 801,838.65 × 520,043.90
  4. Step 4: Simplify right side
    535,595.90x = 416,991,298,716.74
  5. Step 5: Solve for x
    x = 416,991,298,716.74/535,595.90
  6. Step 6: Final answer
    x = 778,555.81

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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.