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Finding the Fourth Proportional to 319,141.17, 440,412.53 and 175,901.40

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Solution

The fourth proportional to 319,141.17, 440,412.53 and 175,901.40 is: 242,742.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,141.17 : 440,412.53 = 175,901.40 : x
  2. Step 2: Convert to fraction form
    319,141.17/440,412.53 = 175,901.40/x
  3. Step 3: Cross multiply
    319,141.17x = 440,412.53 × 175,901.40
  4. Step 4: Simplify right side
    319,141.17x = 77,469,179,725.04
  5. Step 5: Solve for x
    x = 77,469,179,725.04/319,141.17
  6. Step 6: Final answer
    x = 242,742.67

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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.