Home / 890,006.83-1,228,184.18-522,478.10

Finding the Fourth Proportional to 890,006.83, 1,228,184.18 and 522,478.10

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Solution

The fourth proportional to 890,006.83, 1,228,184.18 and 522,478.10 is: 721,004.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,006.83 : 1,228,184.18 = 522,478.10 : x
  2. Step 2: Convert to fraction form
    890,006.83/1,228,184.18 = 522,478.10/x
  3. Step 3: Cross multiply
    890,006.83x = 1,228,184.18 × 522,478.10
  4. Step 4: Simplify right side
    890,006.83x = 641,699,339,233.82
  5. Step 5: Solve for x
    x = 641,699,339,233.82/890,006.83
  6. Step 6: Final answer
    x = 721,004.96

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Double scale
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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.