Home / 589,786.15-812,220.37-531,143.57

Finding the Fourth Proportional to 589,786.15, 812,220.37 and 531,143.57

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Solution

The fourth proportional to 589,786.15, 812,220.37 and 531,143.57 is: 731,461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,786.15 : 812,220.37 = 531,143.57 : x
  2. Step 2: Convert to fraction form
    589,786.15/812,220.37 = 531,143.57/x
  3. Step 3: Cross multiply
    589,786.15x = 812,220.37 × 531,143.57
  4. Step 4: Simplify right side
    589,786.15x = 431,405,626,948.52
  5. Step 5: Solve for x
    x = 431,405,626,948.52/589,786.15
  6. Step 6: Final answer
    x = 731,461.10

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Half scale
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Double scale
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Similar ratio
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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.