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Finding the Fourth Proportional to 535,650.40, 801,920.40 and 520,098.40

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Solution

The fourth proportional to 535,650.40, 801,920.40 and 520,098.40 is: 778,637.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,650.40 : 801,920.40 = 520,098.40 : x
  2. Step 2: Convert to fraction form
    535,650.40/801,920.40 = 520,098.40/x
  3. Step 3: Cross multiply
    535,650.40x = 801,920.40 × 520,098.40
  4. Step 4: Simplify right side
    535,650.40x = 417,077,516,967.36
  5. Step 5: Solve for x
    x = 417,077,516,967.36/535,650.40
  6. Step 6: Final answer
    x = 778,637.55

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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.