Home / 811,484.88-1,119,471.80-525,097.52

Finding the Fourth Proportional to 811,484.88, 1,119,471.80 and 525,097.52

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Solution

The fourth proportional to 811,484.88, 1,119,471.80 and 525,097.52 is: 724,390.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,484.88 : 1,119,471.80 = 525,097.52 : x
  2. Step 2: Convert to fraction form
    811,484.88/1,119,471.80 = 525,097.52/x
  3. Step 3: Cross multiply
    811,484.88x = 1,119,471.80 × 525,097.52
  4. Step 4: Simplify right side
    811,484.88x = 587,831,865,889.94
  5. Step 5: Solve for x
    x = 587,831,865,889.94/811,484.88
  6. Step 6: Final answer
    x = 724,390.41

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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.