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Finding the Fourth Proportional to 586,809.23, 880,213.84 and 320,424.39

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Solution

The fourth proportional to 586,809.23, 880,213.84 and 320,424.39 is: 480,636.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,809.23 : 880,213.84 = 320,424.39 : x
  2. Step 2: Convert to fraction form
    586,809.23/880,213.84 = 320,424.39/x
  3. Step 3: Cross multiply
    586,809.23x = 880,213.84 × 320,424.39
  4. Step 4: Simplify right side
    586,809.23x = 282,041,981,950.50
  5. Step 5: Solve for x
    x = 282,041,981,950.50/586,809.23
  6. Step 6: Final answer
    x = 480,636.59

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.