Home / 899,529.15-1,241,347.32-491,630.97

Finding the Fourth Proportional to 899,529.15, 1,241,347.32 and 491,630.97

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Solution

The fourth proportional to 899,529.15, 1,241,347.32 and 491,630.97 is: 678,449.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,529.15 : 1,241,347.32 = 491,630.97 : x
  2. Step 2: Convert to fraction form
    899,529.15/1,241,347.32 = 491,630.97/x
  3. Step 3: Cross multiply
    899,529.15x = 1,241,347.32 × 491,630.97
  4. Step 4: Simplify right side
    899,529.15x = 610,284,787,038.50
  5. Step 5: Solve for x
    x = 610,284,787,038.50/899,529.15
  6. Step 6: Final answer
    x = 678,449.15

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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.