Home / 821,621.40-1,232,432.10-556,200.60

Finding the Fourth Proportional to 821,621.40, 1,232,432.10 and 556,200.60

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Solution

The fourth proportional to 821,621.40, 1,232,432.10 and 556,200.60 is: 834,300.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,621.40 : 1,232,432.10 = 556,200.60 : x
  2. Step 2: Convert to fraction form
    821,621.40/1,232,432.10 = 556,200.60/x
  3. Step 3: Cross multiply
    821,621.40x = 1,232,432.10 × 556,200.60
  4. Step 4: Simplify right side
    821,621.40x = 685,479,473,479.26
  5. Step 5: Solve for x
    x = 685,479,473,479.26/821,621.40
  6. Step 6: Final answer
    x = 834,300.90

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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.