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Finding the Fourth Proportional to 596,143.89, 822,889.80 and 354,425.22

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Solution

The fourth proportional to 596,143.89, 822,889.80 and 354,425.22 is: 489,232.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    596,143.89 : 822,889.80 = 354,425.22 : x
  2. Step 2: Convert to fraction form
    596,143.89/822,889.80 = 354,425.22/x
  3. Step 3: Cross multiply
    596,143.89x = 822,889.80 × 354,425.22
  4. Step 4: Simplify right side
    596,143.89x = 291,652,898,400.76
  5. Step 5: Solve for x
    x = 291,652,898,400.76/596,143.89
  6. Step 6: Final answer
    x = 489,232.39

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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.