Home / 839,236.48-1,158,131.76-457,266.40

Finding the Fourth Proportional to 839,236.48, 1,158,131.76 and 457,266.40

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Solution

The fourth proportional to 839,236.48, 1,158,131.76 and 457,266.40 is: 631,019.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,236.48 : 1,158,131.76 = 457,266.40 : x
  2. Step 2: Convert to fraction form
    839,236.48/1,158,131.76 = 457,266.40/x
  3. Step 3: Cross multiply
    839,236.48x = 1,158,131.76 × 457,266.40
  4. Step 4: Simplify right side
    839,236.48x = 529,574,740,620.86
  5. Step 5: Solve for x
    x = 529,574,740,620.86/839,236.48
  6. Step 6: Final answer
    x = 631,019.69

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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.