Home / 1,235,856.80-1,853,785.20-525,706.40

Finding the Fourth Proportional to 1,235,856.80, 1,853,785.20 and 525,706.40

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Solution

The fourth proportional to 1,235,856.80, 1,853,785.20 and 525,706.40 is: 788,559.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,856.80 : 1,853,785.20 = 525,706.40 : x
  2. Step 2: Convert to fraction form
    1,235,856.80/1,853,785.20 = 525,706.40/x
  3. Step 3: Cross multiply
    1,235,856.80x = 1,853,785.20 × 525,706.40
  4. Step 4: Simplify right side
    1,235,856.80x = 974,546,743,865.28
  5. Step 5: Solve for x
    x = 974,546,743,865.28/1,235,856.80
  6. Step 6: Final answer
    x = 788,559.60

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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.