Home / 319,311.25-440,627-176,068.22

Finding the Fourth Proportional to 319,311.25, 440,627 and 176,068.22

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Solution

The fourth proportional to 319,311.25, 440,627 and 176,068.22 is: 242,961.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,311.25 : 440,627 = 176,068.22 : x
  2. Step 2: Convert to fraction form
    319,311.25/440,627 = 176,068.22/x
  3. Step 3: Cross multiply
    319,311.25x = 440,627 × 176,068.22
  4. Step 4: Simplify right side
    319,311.25x = 77,580,411,573.94
  5. Step 5: Solve for x
    x = 77,580,411,573.94/319,311.25
  6. Step 6: Final answer
    x = 242,961.72

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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.