Home / 808,636.60-1,211,205.30-525,201.40

Finding the Fourth Proportional to 808,636.60, 1,211,205.30 and 525,201.40

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Solution

The fourth proportional to 808,636.60, 1,211,205.30 and 525,201.40 is: 786,665.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,636.60 : 1,211,205.30 = 525,201.40 : x
  2. Step 2: Convert to fraction form
    808,636.60/1,211,205.30 = 525,201.40/x
  3. Step 3: Cross multiply
    808,636.60x = 1,211,205.30 × 525,201.40
  4. Step 4: Simplify right side
    808,636.60x = 636,126,719,247.42
  5. Step 5: Solve for x
    x = 636,126,719,247.42/808,636.60
  6. Step 6: Final answer
    x = 786,665.75

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1.5x scale

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.