Home / 387,187.02-534,168.84-285,454.32

Finding the Fourth Proportional to 387,187.02, 534,168.84 and 285,454.32

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Solution

The fourth proportional to 387,187.02, 534,168.84 and 285,454.32 is: 393,816.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,187.02 : 534,168.84 = 285,454.32 : x
  2. Step 2: Convert to fraction form
    387,187.02/534,168.84 = 285,454.32/x
  3. Step 3: Cross multiply
    387,187.02x = 534,168.84 × 285,454.32
  4. Step 4: Simplify right side
    387,187.02x = 152,480,802,987.39
  5. Step 5: Solve for x
    x = 152,480,802,987.39/387,187.02
  6. Step 6: Final answer
    x = 393,816.93

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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.