Home / 428,686.70-591,558.81-237,693.02

Finding the Fourth Proportional to 428,686.70, 591,558.81 and 237,693.02

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Solution

The fourth proportional to 428,686.70, 591,558.81 and 237,693.02 is: 328,000.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,686.70 : 591,558.81 = 237,693.02 : x
  2. Step 2: Convert to fraction form
    428,686.70/591,558.81 = 237,693.02/x
  3. Step 3: Cross multiply
    428,686.70x = 591,558.81 × 237,693.02
  4. Step 4: Simplify right side
    428,686.70x = 140,609,400,056.51
  5. Step 5: Solve for x
    x = 140,609,400,056.51/428,686.70
  6. Step 6: Final answer
    x = 328,000.38

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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.