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Finding the Fourth Proportional to 530,835.30, 797,808.15 and 521,504.10

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Solution

The fourth proportional to 530,835.30, 797,808.15 and 521,504.10 is: 783,784.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,835.30 : 797,808.15 = 521,504.10 : x
  2. Step 2: Convert to fraction form
    530,835.30/797,808.15 = 521,504.10/x
  3. Step 3: Cross multiply
    530,835.30x = 797,808.15 × 521,504.10
  4. Step 4: Simplify right side
    530,835.30x = 416,060,221,238.42
  5. Step 5: Solve for x
    x = 416,060,221,238.42/530,835.30
  6. Step 6: Final answer
    x = 783,784.01

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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.