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Finding the Fourth Proportional to 670,893.20, 1,006,048.20 and 221,440.40

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Solution

The fourth proportional to 670,893.20, 1,006,048.20 and 221,440.40 is: 332,064.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,893.20 : 1,006,048.20 = 221,440.40 : x
  2. Step 2: Convert to fraction form
    670,893.20/1,006,048.20 = 221,440.40/x
  3. Step 3: Cross multiply
    670,893.20x = 1,006,048.20 × 221,440.40
  4. Step 4: Simplify right side
    670,893.20x = 222,779,715,827.28
  5. Step 5: Solve for x
    x = 222,779,715,827.28/670,893.20
  6. Step 6: Final answer
    x = 332,064.35

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Double scale
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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.