Home / 806,041.40-1,207,679.70-525,414.20

Finding the Fourth Proportional to 806,041.40, 1,207,679.70 and 525,414.20

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Solution

The fourth proportional to 806,041.40, 1,207,679.70 and 525,414.20 is: 787,220.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,041.40 : 1,207,679.70 = 525,414.20 : x
  2. Step 2: Convert to fraction form
    806,041.40/1,207,679.70 = 525,414.20/x
  3. Step 3: Cross multiply
    806,041.40x = 1,207,679.70 × 525,414.20
  4. Step 4: Simplify right side
    806,041.40x = 634,532,063,431.74
  5. Step 5: Solve for x
    x = 634,532,063,431.74/806,041.40
  6. Step 6: Final answer
    x = 787,220.19

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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.