Home / 991,103.16-1,367,831.70-555,562.32

Finding the Fourth Proportional to 991,103.16, 1,367,831.70 and 555,562.32

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Solution

The fourth proportional to 991,103.16, 1,367,831.70 and 555,562.32 is: 766,737.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,103.16 : 1,367,831.70 = 555,562.32 : x
  2. Step 2: Convert to fraction form
    991,103.16/1,367,831.70 = 555,562.32/x
  3. Step 3: Cross multiply
    991,103.16x = 1,367,831.70 × 555,562.32
  4. Step 4: Simplify right side
    991,103.16x = 759,915,752,621.54
  5. Step 5: Solve for x
    x = 759,915,752,621.54/991,103.16
  6. Step 6: Final answer
    x = 766,737.29

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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.