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Finding the Fourth Proportional to 319,290.52, 440,640.76 and 176,050.34

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Solution

The fourth proportional to 319,290.52, 440,640.76 and 176,050.34 is: 242,960.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,290.52 : 440,640.76 = 176,050.34 : x
  2. Step 2: Convert to fraction form
    319,290.52/440,640.76 = 176,050.34/x
  3. Step 3: Cross multiply
    319,290.52x = 440,640.76 × 176,050.34
  4. Step 4: Simplify right side
    319,290.52x = 77,574,955,615.86
  5. Step 5: Solve for x
    x = 77,574,955,615.86/319,290.52
  6. Step 6: Final answer
    x = 242,960.41

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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.