Home / 859,564.51-1,289,389.59-327,126.81

Finding the Fourth Proportional to 859,564.51, 1,289,389.59 and 327,126.81

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Solution

The fourth proportional to 859,564.51, 1,289,389.59 and 327,126.81 is: 490,706.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,564.51 : 1,289,389.59 = 327,126.81 : x
  2. Step 2: Convert to fraction form
    859,564.51/1,289,389.59 = 327,126.81/x
  3. Step 3: Cross multiply
    859,564.51x = 1,289,389.59 × 327,126.81
  4. Step 4: Simplify right side
    859,564.51x = 421,793,899,815.42
  5. Step 5: Solve for x
    x = 421,793,899,815.42/859,564.51
  6. Step 6: Final answer
    x = 490,706.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.