Home / 923,400.18-1,274,356.62-515,582.28

Finding the Fourth Proportional to 923,400.18, 1,274,356.62 and 515,582.28

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Solution

The fourth proportional to 923,400.18, 1,274,356.62 and 515,582.28 is: 711,539.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,400.18 : 1,274,356.62 = 515,582.28 : x
  2. Step 2: Convert to fraction form
    923,400.18/1,274,356.62 = 515,582.28/x
  3. Step 3: Cross multiply
    923,400.18x = 1,274,356.62 × 515,582.28
  4. Step 4: Simplify right side
    923,400.18x = 657,035,691,672.69
  5. Step 5: Solve for x
    x = 657,035,691,672.69/923,400.18
  6. Step 6: Final answer
    x = 711,539.49

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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.