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Finding the Fourth Proportional to 319,055.76, 440,299.90 and 175,820.93

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Solution

The fourth proportional to 319,055.76, 440,299.90 and 175,820.93 is: 242,634.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,055.76 : 440,299.90 = 175,820.93 : x
  2. Step 2: Convert to fraction form
    319,055.76/440,299.90 = 175,820.93/x
  3. Step 3: Cross multiply
    319,055.76x = 440,299.90 × 175,820.93
  4. Step 4: Simplify right side
    319,055.76x = 77,413,937,566.31
  5. Step 5: Solve for x
    x = 77,413,937,566.31/319,055.76
  6. Step 6: Final answer
    x = 242,634.51

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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.