Home / 430,381.48-593,917.70-239,390.76

Finding the Fourth Proportional to 430,381.48, 593,917.70 and 239,390.76

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Solution

The fourth proportional to 430,381.48, 593,917.70 and 239,390.76 is: 330,354.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,381.48 : 593,917.70 = 239,390.76 : x
  2. Step 2: Convert to fraction form
    430,381.48/593,917.70 = 239,390.76/x
  3. Step 3: Cross multiply
    430,381.48x = 593,917.70 × 239,390.76
  4. Step 4: Simplify right side
    430,381.48x = 142,178,409,580.45
  5. Step 5: Solve for x
    x = 142,178,409,580.45/430,381.48
  6. Step 6: Final answer
    x = 330,354.39

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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.