Home / 923,530.68-1,274,459.90-515,638.76

Finding the Fourth Proportional to 923,530.68, 1,274,459.90 and 515,638.76

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Solution

The fourth proportional to 923,530.68, 1,274,459.90 and 515,638.76 is: 711,574.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,530.68 : 1,274,459.90 = 515,638.76 : x
  2. Step 2: Convert to fraction form
    923,530.68/1,274,459.90 = 515,638.76/x
  3. Step 3: Cross multiply
    923,530.68x = 1,274,459.90 × 515,638.76
  4. Step 4: Simplify right side
    923,530.68x = 657,160,922,505.72
  5. Step 5: Solve for x
    x = 657,160,922,505.72/923,530.68
  6. Step 6: Final answer
    x = 711,574.54

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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.