Home / 619,928.10-855,529.20-344,287.22

Finding the Fourth Proportional to 619,928.10, 855,529.20 and 344,287.22

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Solution

The fourth proportional to 619,928.10, 855,529.20 and 344,287.22 is: 475,132.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,928.10 : 855,529.20 = 344,287.22 : x
  2. Step 2: Convert to fraction form
    619,928.10/855,529.20 = 344,287.22/x
  3. Step 3: Cross multiply
    619,928.10x = 855,529.20 × 344,287.22
  4. Step 4: Simplify right side
    619,928.10x = 294,547,763,897.74
  5. Step 5: Solve for x
    x = 294,547,763,897.74/619,928.10
  6. Step 6: Final answer
    x = 475,132.14

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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.