Home / 413,173.24-619,541.83-128,810.79

Finding the Fourth Proportional to 413,173.24, 619,541.83 and 128,810.79

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Solution

The fourth proportional to 413,173.24, 619,541.83 and 128,810.79 is: 193,148.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,173.24 : 619,541.83 = 128,810.79 : x
  2. Step 2: Convert to fraction form
    413,173.24/619,541.83 = 128,810.79/x
  3. Step 3: Cross multiply
    413,173.24x = 619,541.83 × 128,810.79
  4. Step 4: Simplify right side
    413,173.24x = 79,803,672,721.36
  5. Step 5: Solve for x
    x = 79,803,672,721.36/413,173.24
  6. Step 6: Final answer
    x = 193,148.21

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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.