Home / 824,527.74-1,138,072.23-485,105.34

Finding the Fourth Proportional to 824,527.74, 1,138,072.23 and 485,105.34

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Solution

The fourth proportional to 824,527.74, 1,138,072.23 and 485,105.34 is: 669,577.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,527.74 : 1,138,072.23 = 485,105.34 : x
  2. Step 2: Convert to fraction form
    824,527.74/1,138,072.23 = 485,105.34/x
  3. Step 3: Cross multiply
    824,527.74x = 1,138,072.23 × 485,105.34
  4. Step 4: Simplify right side
    824,527.74x = 552,084,916,078.71
  5. Step 5: Solve for x
    x = 552,084,916,078.71/824,527.74
  6. Step 6: Final answer
    x = 669,577.13

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Double scale
Find fourth proportional to 824,528.74, 1,138,073.61 and 485,106.34
Similar ratio
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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.