Home / 857,983.14-1,184,048.37-518,385.78

Finding the Fourth Proportional to 857,983.14, 1,184,048.37 and 518,385.78

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Solution

The fourth proportional to 857,983.14, 1,184,048.37 and 518,385.78 is: 715,391.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,983.14 : 1,184,048.37 = 518,385.78 : x
  2. Step 2: Convert to fraction form
    857,983.14/1,184,048.37 = 518,385.78/x
  3. Step 3: Cross multiply
    857,983.14x = 1,184,048.37 × 518,385.78
  4. Step 4: Simplify right side
    857,983.14x = 613,793,837,840.18
  5. Step 5: Solve for x
    x = 613,793,837,840.18/857,983.14
  6. Step 6: Final answer
    x = 715,391.49

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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.