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Finding the Fourth Proportional to 319,302.90, 440,615.46 and 176,059.89

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Solution

The fourth proportional to 319,302.90, 440,615.46 and 176,059.89 is: 242,950.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,302.90 : 440,615.46 = 176,059.89 : x
  2. Step 2: Convert to fraction form
    319,302.90/440,615.46 = 176,059.89/x
  3. Step 3: Cross multiply
    319,302.90x = 440,615.46 × 176,059.89
  4. Step 4: Simplify right side
    319,302.90x = 77,574,709,419.90
  5. Step 5: Solve for x
    x = 77,574,709,419.90/319,302.90
  6. Step 6: Final answer
    x = 242,950.22

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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.