Home / 621,218.56-855,165.99-459,769.36

Finding the Fourth Proportional to 621,218.56, 855,165.99 and 459,769.36

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Solution

The fourth proportional to 621,218.56, 855,165.99 and 459,769.36 is: 632,915.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,218.56 : 855,165.99 = 459,769.36 : x
  2. Step 2: Convert to fraction form
    621,218.56/855,165.99 = 459,769.36/x
  3. Step 3: Cross multiply
    621,218.56x = 855,165.99 × 459,769.36
  4. Step 4: Simplify right side
    621,218.56x = 393,179,119,916.07
  5. Step 5: Solve for x
    x = 393,179,119,916.07/621,218.56
  6. Step 6: Final answer
    x = 632,915.93

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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.