Home / 626,721.54-864,040.47-498,089.46

Finding the Fourth Proportional to 626,721.54, 864,040.47 and 498,089.46

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Solution

The fourth proportional to 626,721.54, 864,040.47 and 498,089.46 is: 686,699.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,721.54 : 864,040.47 = 498,089.46 : x
  2. Step 2: Convert to fraction form
    626,721.54/864,040.47 = 498,089.46/x
  3. Step 3: Cross multiply
    626,721.54x = 864,040.47 × 498,089.46
  4. Step 4: Simplify right side
    626,721.54x = 430,369,451,120.45
  5. Step 5: Solve for x
    x = 430,369,451,120.45/626,721.54
  6. Step 6: Final answer
    x = 686,699.63

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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.