Home / 736,142.45-1,015,870.47-413,853.98

Finding the Fourth Proportional to 736,142.45, 1,015,870.47 and 413,853.98

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Solution

The fourth proportional to 736,142.45, 1,015,870.47 and 413,853.98 is: 571,115.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,142.45 : 1,015,870.47 = 413,853.98 : x
  2. Step 2: Convert to fraction form
    736,142.45/1,015,870.47 = 413,853.98/x
  3. Step 3: Cross multiply
    736,142.45x = 1,015,870.47 × 413,853.98
  4. Step 4: Simplify right side
    736,142.45x = 420,422,037,173.97
  5. Step 5: Solve for x
    x = 420,422,037,173.97/736,142.45
  6. Step 6: Final answer
    x = 571,115.06

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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.