Home / 923,454.36-1,274,386.90-509,989.80

Finding the Fourth Proportional to 923,454.36, 1,274,386.90 and 509,989.80

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Solution

The fourth proportional to 923,454.36, 1,274,386.90 and 509,989.80 is: 703,796.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,454.36 : 1,274,386.90 = 509,989.80 : x
  2. Step 2: Convert to fraction form
    923,454.36/1,274,386.90 = 509,989.80/x
  3. Step 3: Cross multiply
    923,454.36x = 1,274,386.90 × 509,989.80
  4. Step 4: Simplify right side
    923,454.36x = 649,924,320,253.62
  5. Step 5: Solve for x
    x = 649,924,320,253.62/923,454.36
  6. Step 6: Final answer
    x = 703,796.90

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Double scale
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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.