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Finding the Fourth Proportional to 669,805.86, 924,328.29 and 363,879.80

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Solution

The fourth proportional to 669,805.86, 924,328.29 and 363,879.80 is: 502,152.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,805.86 : 924,328.29 = 363,879.80 : x
  2. Step 2: Convert to fraction form
    669,805.86/924,328.29 = 363,879.80/x
  3. Step 3: Cross multiply
    669,805.86x = 924,328.29 × 363,879.80
  4. Step 4: Simplify right side
    669,805.86x = 336,344,393,299.54
  5. Step 5: Solve for x
    x = 336,344,393,299.54/669,805.86
  6. Step 6: Final answer
    x = 502,152.06

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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.