Home / 1,686,506.55-2,528,885.03-621,000.15

Finding the Fourth Proportional to 1,686,506.55, 2,528,885.03 and 621,000.15

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Solution

The fourth proportional to 1,686,506.55, 2,528,885.03 and 621,000.15 is: 931,178.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,506.55 : 2,528,885.03 = 621,000.15 : x
  2. Step 2: Convert to fraction form
    1,686,506.55/2,528,885.03 = 621,000.15/x
  3. Step 3: Cross multiply
    1,686,506.55x = 2,528,885.03 × 621,000.15
  4. Step 4: Simplify right side
    1,686,506.55x = 1,570,437,979,857.75
  5. Step 5: Solve for x
    x = 1,570,437,979,857.75/1,686,506.55
  6. Step 6: Final answer
    x = 931,178.11

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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.