Home / 619,784.04-855,305.63-344,145.80

Finding the Fourth Proportional to 619,784.04, 855,305.63 and 344,145.80

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Solution

The fourth proportional to 619,784.04, 855,305.63 and 344,145.80 is: 474,923.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,784.04 : 855,305.63 = 344,145.80 : x
  2. Step 2: Convert to fraction form
    619,784.04/855,305.63 = 344,145.80/x
  3. Step 3: Cross multiply
    619,784.04x = 855,305.63 × 344,145.80
  4. Step 4: Simplify right side
    619,784.04x = 294,349,840,280.85
  5. Step 5: Solve for x
    x = 294,349,840,280.85/619,784.04
  6. Step 6: Final answer
    x = 474,923.23

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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.