Home / 451,276.93-622,403.39-383,518.20

Finding the Fourth Proportional to 451,276.93, 622,403.39 and 383,518.20

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Solution

The fourth proportional to 451,276.93, 622,403.39 and 383,518.20 is: 528,950.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,276.93 : 622,403.39 = 383,518.20 : x
  2. Step 2: Convert to fraction form
    451,276.93/622,403.39 = 383,518.20/x
  3. Step 3: Cross multiply
    451,276.93x = 622,403.39 × 383,518.20
  4. Step 4: Simplify right side
    451,276.93x = 238,703,031,099.51
  5. Step 5: Solve for x
    x = 238,703,031,099.51/451,276.93
  6. Step 6: Final answer
    x = 528,950.22

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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.