Home / 583,221.20-874,831.80-139,989.20

Finding the Fourth Proportional to 583,221.20, 874,831.80 and 139,989.20

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Solution

The fourth proportional to 583,221.20, 874,831.80 and 139,989.20 is: 209,983.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,221.20 : 874,831.80 = 139,989.20 : x
  2. Step 2: Convert to fraction form
    583,221.20/874,831.80 = 139,989.20/x
  3. Step 3: Cross multiply
    583,221.20x = 874,831.80 × 139,989.20
  4. Step 4: Simplify right side
    583,221.20x = 122,466,999,442.40
  5. Step 5: Solve for x
    x = 122,466,999,442.40/583,221.20
  6. Step 6: Final answer
    x = 209,983.79

Related Problems

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Half scale
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Double scale
Find fourth proportional to 583,222.20, 874,833.30 and 139,990.20
Similar ratio
Find fourth proportional to 874,831.79, 1,312,247.70 and 209,983.79
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.