Home / 936,920.40-1,292,949.86-507,200.21

Finding the Fourth Proportional to 936,920.40, 1,292,949.86 and 507,200.21

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Solution

The fourth proportional to 936,920.40, 1,292,949.86 and 507,200.21 is: 699,936.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,920.40 : 1,292,949.86 = 507,200.21 : x
  2. Step 2: Convert to fraction form
    936,920.40/1,292,949.86 = 507,200.21/x
  3. Step 3: Cross multiply
    936,920.40x = 1,292,949.86 × 507,200.21
  4. Step 4: Simplify right side
    936,920.40x = 655,784,440,511.47
  5. Step 5: Solve for x
    x = 655,784,440,511.47/936,920.40
  6. Step 6: Final answer
    x = 699,936.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.