Home / 874,808.40-1,312,212.60-559,621.20

Finding the Fourth Proportional to 874,808.40, 1,312,212.60 and 559,621.20

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Solution

The fourth proportional to 874,808.40, 1,312,212.60 and 559,621.20 is: 839,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,808.40 : 1,312,212.60 = 559,621.20 : x
  2. Step 2: Convert to fraction form
    874,808.40/1,312,212.60 = 559,621.20/x
  3. Step 3: Cross multiply
    874,808.40x = 1,312,212.60 × 559,621.20
  4. Step 4: Simplify right side
    874,808.40x = 734,341,989,867.12
  5. Step 5: Solve for x
    x = 734,341,989,867.12/874,808.40
  6. Step 6: Final answer
    x = 839,431.80

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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.