Home / 823,511.40-1,237,340.70-524,135.40

Finding the Fourth Proportional to 823,511.40, 1,237,340.70 and 524,135.40

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Solution

The fourth proportional to 823,511.40, 1,237,340.70 and 524,135.40 is: 787,522.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,511.40 : 1,237,340.70 = 524,135.40 : x
  2. Step 2: Convert to fraction form
    823,511.40/1,237,340.70 = 524,135.40/x
  3. Step 3: Cross multiply
    823,511.40x = 1,237,340.70 × 524,135.40
  4. Step 4: Simplify right side
    823,511.40x = 648,534,062,730.78
  5. Step 5: Solve for x
    x = 648,534,062,730.78/823,511.40
  6. Step 6: Final answer
    x = 787,522.87

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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.