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Finding the Fourth Proportional to 669,790.42, 924,311.59 and 363,867.01

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Solution

The fourth proportional to 669,790.42, 924,311.59 and 363,867.01 is: 502,136.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,790.42 : 924,311.59 = 363,867.01 : x
  2. Step 2: Convert to fraction form
    669,790.42/924,311.59 = 363,867.01/x
  3. Step 3: Cross multiply
    669,790.42x = 924,311.59 × 363,867.01
  4. Step 4: Simplify right side
    669,790.42x = 336,326,494,561.65
  5. Step 5: Solve for x
    x = 336,326,494,561.65/669,790.42
  6. Step 6: Final answer
    x = 502,136.91

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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.