Home / 1,386,526.72-2,079,784.60-439,971.24

Finding the Fourth Proportional to 1,386,526.72, 2,079,784.60 and 439,971.24

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Solution

The fourth proportional to 1,386,526.72, 2,079,784.60 and 439,971.24 is: 659,955.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,526.72 : 2,079,784.60 = 439,971.24 : x
  2. Step 2: Convert to fraction form
    1,386,526.72/2,079,784.60 = 439,971.24/x
  3. Step 3: Cross multiply
    1,386,526.72x = 2,079,784.60 × 439,971.24
  4. Step 4: Simplify right side
    1,386,526.72x = 915,045,409,394.90
  5. Step 5: Solve for x
    x = 915,045,409,394.90/1,386,526.72
  6. Step 6: Final answer
    x = 659,955.12

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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.