Home / 579,430.20-869,145.30-529,663.80

Finding the Fourth Proportional to 579,430.20, 869,145.30 and 529,663.80

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Solution

The fourth proportional to 579,430.20, 869,145.30 and 529,663.80 is: 794,495.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,430.20 : 869,145.30 = 529,663.80 : x
  2. Step 2: Convert to fraction form
    579,430.20/869,145.30 = 529,663.80/x
  3. Step 3: Cross multiply
    579,430.20x = 869,145.30 × 529,663.80
  4. Step 4: Simplify right side
    579,430.20x = 460,354,802,350.14
  5. Step 5: Solve for x
    x = 460,354,802,350.14/579,430.20
  6. Step 6: Final answer
    x = 794,495.70

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Double scale
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Similar ratio
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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.