Home / 760,161.78-1,049,051.25-491,889.78

Finding the Fourth Proportional to 760,161.78, 1,049,051.25 and 491,889.78

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Solution

The fourth proportional to 760,161.78, 1,049,051.25 and 491,889.78 is: 678,826.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,161.78 : 1,049,051.25 = 491,889.78 : x
  2. Step 2: Convert to fraction form
    760,161.78/1,049,051.25 = 491,889.78/x
  3. Step 3: Cross multiply
    760,161.78x = 1,049,051.25 × 491,889.78
  4. Step 4: Simplify right side
    760,161.78x = 516,017,588,571.23
  5. Step 5: Solve for x
    x = 516,017,588,571.23/760,161.78
  6. Step 6: Final answer
    x = 678,826.01

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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.