Home / 338,571.52-507,331.20-128,095.36

Finding the Fourth Proportional to 338,571.52, 507,331.20 and 128,095.36

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Solution

The fourth proportional to 338,571.52, 507,331.20 and 128,095.36 is: 191,944.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,571.52 : 507,331.20 = 128,095.36 : x
  2. Step 2: Convert to fraction form
    338,571.52/507,331.20 = 128,095.36/x
  3. Step 3: Cross multiply
    338,571.52x = 507,331.20 × 128,095.36
  4. Step 4: Simplify right side
    338,571.52x = 64,986,772,703.23
  5. Step 5: Solve for x
    x = 64,986,772,703.23/338,571.52
  6. Step 6: Final answer
    x = 191,944.00

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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.