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Finding the Fourth Proportional to 302,417.40, 453,188.70 and 133,799.70

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Solution

The fourth proportional to 302,417.40, 453,188.70 and 133,799.70 is: 200,506.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,417.40 : 453,188.70 = 133,799.70 : x
  2. Step 2: Convert to fraction form
    302,417.40/453,188.70 = 133,799.70/x
  3. Step 3: Cross multiply
    302,417.40x = 453,188.70 × 133,799.70
  4. Step 4: Simplify right side
    302,417.40x = 60,636,512,103.39
  5. Step 5: Solve for x
    x = 60,636,512,103.39/302,417.40
  6. Step 6: Final answer
    x = 200,506.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.