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Finding the Fourth Proportional to 319,009.85, 440,243.57 and 183,068.67

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Solution

The fourth proportional to 319,009.85, 440,243.57 and 183,068.67 is: 252,640.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,009.85 : 440,243.57 = 183,068.67 : x
  2. Step 2: Convert to fraction form
    319,009.85/440,243.57 = 183,068.67/x
  3. Step 3: Cross multiply
    319,009.85x = 440,243.57 × 183,068.67
  4. Step 4: Simplify right side
    319,009.85x = 80,594,804,835.95
  5. Step 5: Solve for x
    x = 80,594,804,835.95/319,009.85
  6. Step 6: Final answer
    x = 252,640.49

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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.