Home / 916,690.28-1,265,265.12-626,419.40

Finding the Fourth Proportional to 916,690.28, 1,265,265.12 and 626,419.40

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Solution

The fourth proportional to 916,690.28, 1,265,265.12 and 626,419.40 is: 864,617.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,690.28 : 1,265,265.12 = 626,419.40 : x
  2. Step 2: Convert to fraction form
    916,690.28/1,265,265.12 = 626,419.40/x
  3. Step 3: Cross multiply
    916,690.28x = 1,265,265.12 × 626,419.40
  4. Step 4: Simplify right side
    916,690.28x = 792,586,617,311.33
  5. Step 5: Solve for x
    x = 792,586,617,311.33/916,690.28
  6. Step 6: Final answer
    x = 864,617.67

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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.