Home / 858,393.90-1,184,213.79-518,665.50

Finding the Fourth Proportional to 858,393.90, 1,184,213.79 and 518,665.50

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Solution

The fourth proportional to 858,393.90, 1,184,213.79 and 518,665.50 is: 715,534.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,393.90 : 1,184,213.79 = 518,665.50 : x
  2. Step 2: Convert to fraction form
    858,393.90/1,184,213.79 = 518,665.50/x
  3. Step 3: Cross multiply
    858,393.90x = 1,184,213.79 × 518,665.50
  4. Step 4: Simplify right side
    858,393.90x = 614,210,837,497.25
  5. Step 5: Solve for x
    x = 614,210,837,497.25/858,393.90
  6. Step 6: Final answer
    x = 715,534.95

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Double scale
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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.