Home / 683,330.56-942,985.92-397,011.20

Finding the Fourth Proportional to 683,330.56, 942,985.92 and 397,011.20

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Solution

The fourth proportional to 683,330.56, 942,985.92 and 397,011.20 is: 547,869.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,330.56 : 942,985.92 = 397,011.20 : x
  2. Step 2: Convert to fraction form
    683,330.56/942,985.92 = 397,011.20/x
  3. Step 3: Cross multiply
    683,330.56x = 942,985.92 × 397,011.20
  4. Step 4: Simplify right side
    683,330.56x = 374,375,971,682.30
  5. Step 5: Solve for x
    x = 374,375,971,682.30/683,330.56
  6. Step 6: Final answer
    x = 547,869.50

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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.