Home / 931,036.20-1,396,554.30-663,347.40

Finding the Fourth Proportional to 931,036.20, 1,396,554.30 and 663,347.40

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Solution

The fourth proportional to 931,036.20, 1,396,554.30 and 663,347.40 is: 995,021.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,036.20 : 1,396,554.30 = 663,347.40 : x
  2. Step 2: Convert to fraction form
    931,036.20/1,396,554.30 = 663,347.40/x
  3. Step 3: Cross multiply
    931,036.20x = 1,396,554.30 × 663,347.40
  4. Step 4: Simplify right side
    931,036.20x = 926,400,663,863.82
  5. Step 5: Solve for x
    x = 926,400,663,863.82/931,036.20
  6. Step 6: Final answer
    x = 995,021.10

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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.