Home / 825,386.14-1,139,031.82-457,919.02

Finding the Fourth Proportional to 825,386.14, 1,139,031.82 and 457,919.02

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Solution

The fourth proportional to 825,386.14, 1,139,031.82 and 457,919.02 is: 631,927.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,386.14 : 1,139,031.82 = 457,919.02 : x
  2. Step 2: Convert to fraction form
    825,386.14/1,139,031.82 = 457,919.02/x
  3. Step 3: Cross multiply
    825,386.14x = 1,139,031.82 × 457,919.02
  4. Step 4: Simplify right side
    825,386.14x = 521,584,336,759.41
  5. Step 5: Solve for x
    x = 521,584,336,759.41/825,386.14
  6. Step 6: Final answer
    x = 631,927.67

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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.