Home / 428,683.59-591,528.98-235,040.34

Finding the Fourth Proportional to 428,683.59, 591,528.98 and 235,040.34

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Solution

The fourth proportional to 428,683.59, 591,528.98 and 235,040.34 is: 324,325.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,683.59 : 591,528.98 = 235,040.34 : x
  2. Step 2: Convert to fraction form
    428,683.59/591,528.98 = 235,040.34/x
  3. Step 3: Cross multiply
    428,683.59x = 591,528.98 × 235,040.34
  4. Step 4: Simplify right side
    428,683.59x = 139,033,174,645.48
  5. Step 5: Solve for x
    x = 139,033,174,645.48/428,683.59
  6. Step 6: Final answer
    x = 324,325.86

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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.