Home / 899,399.30-1,241,187.34-491,518.40

Finding the Fourth Proportional to 899,399.30, 1,241,187.34 and 491,518.40

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Solution

The fourth proportional to 899,399.30, 1,241,187.34 and 491,518.40 is: 678,304.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,399.30 : 1,241,187.34 = 491,518.40 : x
  2. Step 2: Convert to fraction form
    899,399.30/1,241,187.34 = 491,518.40/x
  3. Step 3: Cross multiply
    899,399.30x = 1,241,187.34 × 491,518.40
  4. Step 4: Simplify right side
    899,399.30x = 610,066,415,457.06
  5. Step 5: Solve for x
    x = 610,066,415,457.06/899,399.30
  6. Step 6: Final answer
    x = 678,304.30

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.