Home / 899,188.26-1,240,865.32-491,281.35

Finding the Fourth Proportional to 899,188.26, 1,240,865.32 and 491,281.35

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Solution

The fourth proportional to 899,188.26, 1,240,865.32 and 491,281.35 is: 677,960.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,188.26 : 1,240,865.32 = 491,281.35 : x
  2. Step 2: Convert to fraction form
    899,188.26/1,240,865.32 = 491,281.35/x
  3. Step 3: Cross multiply
    899,188.26x = 1,240,865.32 × 491,281.35
  4. Step 4: Simplify right side
    899,188.26x = 609,613,989,577.78
  5. Step 5: Solve for x
    x = 609,613,989,577.78/899,188.26
  6. Step 6: Final answer
    x = 677,960.35

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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.