Home / 807,856.40-1,211,784.60-525,846.80

Finding the Fourth Proportional to 807,856.40, 1,211,784.60 and 525,846.80

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Solution

The fourth proportional to 807,856.40, 1,211,784.60 and 525,846.80 is: 788,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,856.40 : 1,211,784.60 = 525,846.80 : x
  2. Step 2: Convert to fraction form
    807,856.40/1,211,784.60 = 525,846.80/x
  3. Step 3: Cross multiply
    807,856.40x = 1,211,784.60 × 525,846.80
  4. Step 4: Simplify right side
    807,856.40x = 637,213,054,199.28
  5. Step 5: Solve for x
    x = 637,213,054,199.28/807,856.40
  6. Step 6: Final answer
    x = 788,770.20

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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.