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Finding the Fourth Proportional to 404,443.80, 606,665.70 and 193,973.40

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Solution

The fourth proportional to 404,443.80, 606,665.70 and 193,973.40 is: 290,960.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,443.80 : 606,665.70 = 193,973.40 : x
  2. Step 2: Convert to fraction form
    404,443.80/606,665.70 = 193,973.40/x
  3. Step 3: Cross multiply
    404,443.80x = 606,665.70 × 193,973.40
  4. Step 4: Simplify right side
    404,443.80x = 117,677,008,492.38
  5. Step 5: Solve for x
    x = 117,677,008,492.38/404,443.80
  6. Step 6: Final answer
    x = 290,960.10

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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.