Home / 714,432.48-985,913.34-392,148.06

Finding the Fourth Proportional to 714,432.48, 985,913.34 and 392,148.06

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Solution

The fourth proportional to 714,432.48, 985,913.34 and 392,148.06 is: 541,162.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,432.48 : 985,913.34 = 392,148.06 : x
  2. Step 2: Convert to fraction form
    714,432.48/985,913.34 = 392,148.06/x
  3. Step 3: Cross multiply
    714,432.48x = 985,913.34 × 392,148.06
  4. Step 4: Simplify right side
    714,432.48x = 386,624,003,609.12
  5. Step 5: Solve for x
    x = 386,624,003,609.12/714,432.48
  6. Step 6: Final answer
    x = 541,162.41

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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.