Home / 519,939.10-779,908.65-145,962.10

Finding the Fourth Proportional to 519,939.10, 779,908.65 and 145,962.10

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Solution

The fourth proportional to 519,939.10, 779,908.65 and 145,962.10 is: 218,943.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,939.10 : 779,908.65 = 145,962.10 : x
  2. Step 2: Convert to fraction form
    519,939.10/779,908.65 = 145,962.10/x
  3. Step 3: Cross multiply
    519,939.10x = 779,908.65 × 145,962.10
  4. Step 4: Simplify right side
    519,939.10x = 113,837,104,362.17
  5. Step 5: Solve for x
    x = 113,837,104,362.17/519,939.10
  6. Step 6: Final answer
    x = 218,943.15

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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.