Home / 827,092.20-1,240,638.30-328,456.20

Finding the Fourth Proportional to 827,092.20, 1,240,638.30 and 328,456.20

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Solution

The fourth proportional to 827,092.20, 1,240,638.30 and 328,456.20 is: 492,684.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,092.20 : 1,240,638.30 = 328,456.20 : x
  2. Step 2: Convert to fraction form
    827,092.20/1,240,638.30 = 328,456.20/x
  3. Step 3: Cross multiply
    827,092.20x = 1,240,638.30 × 328,456.20
  4. Step 4: Simplify right side
    827,092.20x = 407,495,341,592.46
  5. Step 5: Solve for x
    x = 407,495,341,592.46/827,092.20
  6. Step 6: Final answer
    x = 492,684.30

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Half scale
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Double scale
Find fourth proportional to 827,093.20, 1,240,639.80 and 328,457.20
Similar ratio
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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.