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Finding the Fourth Proportional to 411,779.30, 617,775.43 and 241,145.11

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Solution

The fourth proportional to 411,779.30, 617,775.43 and 241,145.11 is: 361,780.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,779.30 : 617,775.43 = 241,145.11 : x
  2. Step 2: Convert to fraction form
    411,779.30/617,775.43 = 241,145.11/x
  3. Step 3: Cross multiply
    411,779.30x = 617,775.43 × 241,145.11
  4. Step 4: Simplify right side
    411,779.30x = 148,973,521,875.35
  5. Step 5: Solve for x
    x = 148,973,521,875.35/411,779.30
  6. Step 6: Final answer
    x = 361,780.02

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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.