Home / 689,222.16-951,127.14-383,291.88

Finding the Fourth Proportional to 689,222.16, 951,127.14 and 383,291.88

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Solution

The fourth proportional to 689,222.16, 951,127.14 and 383,291.88 is: 528,943.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,222.16 : 951,127.14 = 383,291.88 : x
  2. Step 2: Convert to fraction form
    689,222.16/951,127.14 = 383,291.88/x
  3. Step 3: Cross multiply
    689,222.16x = 951,127.14 × 383,291.88
  4. Step 4: Simplify right side
    689,222.16x = 364,559,309,609.62
  5. Step 5: Solve for x
    x = 364,559,309,609.62/689,222.16
  6. Step 6: Final answer
    x = 528,943.11

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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.