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Finding the Fourth Proportional to 411,328.80, 616,532.40 and 233,920.80

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Solution

The fourth proportional to 411,328.80, 616,532.40 and 233,920.80 is: 350,619.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,328.80 : 616,532.40 = 233,920.80 : x
  2. Step 2: Convert to fraction form
    411,328.80/616,532.40 = 233,920.80/x
  3. Step 3: Cross multiply
    411,328.80x = 616,532.40 × 233,920.80
  4. Step 4: Simplify right side
    411,328.80x = 144,219,752,233.92
  5. Step 5: Solve for x
    x = 144,219,752,233.92/411,328.80
  6. Step 6: Final answer
    x = 350,619.15

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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.