Home / 688,557.80-1,032,831.30-407,873

Finding the Fourth Proportional to 688,557.80, 1,032,831.30 and 407,873

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Solution

The fourth proportional to 688,557.80, 1,032,831.30 and 407,873 is: 611,806.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,557.80 : 1,032,831.30 = 407,873 : x
  2. Step 2: Convert to fraction form
    688,557.80/1,032,831.30 = 407,873/x
  3. Step 3: Cross multiply
    688,557.80x = 1,032,831.30 × 407,873
  4. Step 4: Simplify right side
    688,557.80x = 421,264,000,824.90
  5. Step 5: Solve for x
    x = 421,264,000,824.90/688,557.80
  6. Step 6: Final answer
    x = 611,806.30

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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.