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Finding the Fourth Proportional to 574,980.53, 793,478.34 and 316,866.74

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Solution

The fourth proportional to 574,980.53, 793,478.34 and 316,866.74 is: 437,278.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,980.53 : 793,478.34 = 316,866.74 : x
  2. Step 2: Convert to fraction form
    574,980.53/793,478.34 = 316,866.74/x
  3. Step 3: Cross multiply
    574,980.53x = 793,478.34 × 316,866.74
  4. Step 4: Simplify right side
    574,980.53x = 251,426,890,889.02
  5. Step 5: Solve for x
    x = 251,426,890,889.02/574,980.53
  6. Step 6: Final answer
    x = 437,278.97

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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.