Home / 827,007.60-1,240,511.40-353,740.80

Finding the Fourth Proportional to 827,007.60, 1,240,511.40 and 353,740.80

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Solution

The fourth proportional to 827,007.60, 1,240,511.40 and 353,740.80 is: 530,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,007.60 : 1,240,511.40 = 353,740.80 : x
  2. Step 2: Convert to fraction form
    827,007.60/1,240,511.40 = 353,740.80/x
  3. Step 3: Cross multiply
    827,007.60x = 1,240,511.40 × 353,740.80
  4. Step 4: Simplify right side
    827,007.60x = 438,819,495,045.12
  5. Step 5: Solve for x
    x = 438,819,495,045.12/827,007.60
  6. Step 6: Final answer
    x = 530,611.20

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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.