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Finding the Fourth Proportional to 389,051.04, 536,894.52 and 219,285.17

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Solution

The fourth proportional to 389,051.04, 536,894.52 and 219,285.17 is: 302,615.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,051.04 : 536,894.52 = 219,285.17 : x
  2. Step 2: Convert to fraction form
    389,051.04/536,894.52 = 219,285.17/x
  3. Step 3: Cross multiply
    389,051.04x = 536,894.52 × 219,285.17
  4. Step 4: Simplify right side
    389,051.04x = 117,733,003,405.80
  5. Step 5: Solve for x
    x = 117,733,003,405.80/389,051.04
  6. Step 6: Final answer
    x = 302,615.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.