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Finding the Fourth Proportional to 358,802.40, 538,160.40 and 148,418.40

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Solution

The fourth proportional to 358,802.40, 538,160.40 and 148,418.40 is: 222,609.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,802.40 : 538,160.40 = 148,418.40 : x
  2. Step 2: Convert to fraction form
    358,802.40/538,160.40 = 148,418.40/x
  3. Step 3: Cross multiply
    358,802.40x = 538,160.40 × 148,418.40
  4. Step 4: Simplify right side
    358,802.40x = 79,872,905,511.36
  5. Step 5: Solve for x
    x = 79,872,905,511.36/358,802.40
  6. Step 6: Final answer
    x = 222,609.73

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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.