Home / 828,154.12-1,241,345.43-378,200.74

Finding the Fourth Proportional to 828,154.12, 1,241,345.43 and 378,200.74

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Solution

The fourth proportional to 828,154.12, 1,241,345.43 and 378,200.74 is: 566,896.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,154.12 : 1,241,345.43 = 378,200.74 : x
  2. Step 2: Convert to fraction form
    828,154.12/1,241,345.43 = 378,200.74/x
  3. Step 3: Cross multiply
    828,154.12x = 1,241,345.43 × 378,200.74
  4. Step 4: Simplify right side
    828,154.12x = 469,477,754,014.89
  5. Step 5: Solve for x
    x = 469,477,754,014.89/828,154.12
  6. Step 6: Final answer
    x = 566,896.60

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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.