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Finding the Fourth Proportional to 358,109.20, 537,412.20 and 269,549.20

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Solution

The fourth proportional to 358,109.20, 537,412.20 and 269,549.20 is: 404,510.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,109.20 : 537,412.20 = 269,549.20 : x
  2. Step 2: Convert to fraction form
    358,109.20/537,412.20 = 269,549.20/x
  3. Step 3: Cross multiply
    358,109.20x = 537,412.20 × 269,549.20
  4. Step 4: Simplify right side
    358,109.20x = 144,859,028,580.24
  5. Step 5: Solve for x
    x = 144,859,028,580.24/358,109.20
  6. Step 6: Final answer
    x = 404,510.77

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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.