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Finding the Fourth Proportional to 316,296.04, 436,494 and 173,068.60

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Solution

The fourth proportional to 316,296.04, 436,494 and 173,068.60 is: 238,837.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,296.04 : 436,494 = 173,068.60 : x
  2. Step 2: Convert to fraction form
    316,296.04/436,494 = 173,068.60/x
  3. Step 3: Cross multiply
    316,296.04x = 436,494 × 173,068.60
  4. Step 4: Simplify right side
    316,296.04x = 75,543,405,488.40
  5. Step 5: Solve for x
    x = 75,543,405,488.40/316,296.04
  6. Step 6: Final answer
    x = 238,837.66

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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.