Home / 806,043.40-1,207,682.70-525,416.20

Finding the Fourth Proportional to 806,043.40, 1,207,682.70 and 525,416.20

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Solution

The fourth proportional to 806,043.40, 1,207,682.70 and 525,416.20 is: 787,223.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,043.40 : 1,207,682.70 = 525,416.20 : x
  2. Step 2: Convert to fraction form
    806,043.40/1,207,682.70 = 525,416.20/x
  3. Step 3: Cross multiply
    806,043.40x = 1,207,682.70 × 525,416.20
  4. Step 4: Simplify right side
    806,043.40x = 634,536,055,039.74
  5. Step 5: Solve for x
    x = 634,536,055,039.74/806,043.40
  6. Step 6: Final answer
    x = 787,223.19

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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.