Home / 687,836.69-1,031,212.40-434,583.37

Finding the Fourth Proportional to 687,836.69, 1,031,212.40 and 434,583.37

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Solution

The fourth proportional to 687,836.69, 1,031,212.40 and 434,583.37 is: 651,532.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,836.69 : 1,031,212.40 = 434,583.37 : x
  2. Step 2: Convert to fraction form
    687,836.69/1,031,212.40 = 434,583.37/x
  3. Step 3: Cross multiply
    687,836.69x = 1,031,212.40 × 434,583.37
  4. Step 4: Simplify right side
    687,836.69x = 448,147,759,977.79
  5. Step 5: Solve for x
    x = 448,147,759,977.79/687,836.69
  6. Step 6: Final answer
    x = 651,532.21

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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.