Home / 526,579.40-789,638.70-210,931.40

Finding the Fourth Proportional to 526,579.40, 789,638.70 and 210,931.40

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Solution

The fourth proportional to 526,579.40, 789,638.70 and 210,931.40 is: 316,304.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,579.40 : 789,638.70 = 210,931.40 : x
  2. Step 2: Convert to fraction form
    526,579.40/789,638.70 = 210,931.40/x
  3. Step 3: Cross multiply
    526,579.40x = 789,638.70 × 210,931.40
  4. Step 4: Simplify right side
    526,579.40x = 166,559,596,485.18
  5. Step 5: Solve for x
    x = 166,559,596,485.18/526,579.40
  6. Step 6: Final answer
    x = 316,304.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.