Home / 1,294,938.40-1,942,407.60-665,082.40

Finding the Fourth Proportional to 1,294,938.40, 1,942,407.60 and 665,082.40

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Solution

The fourth proportional to 1,294,938.40, 1,942,407.60 and 665,082.40 is: 997,623.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,938.40 : 1,942,407.60 = 665,082.40 : x
  2. Step 2: Convert to fraction form
    1,294,938.40/1,942,407.60 = 665,082.40/x
  3. Step 3: Cross multiply
    1,294,938.40x = 1,942,407.60 × 665,082.40
  4. Step 4: Simplify right side
    1,294,938.40x = 1,291,861,108,386.24
  5. Step 5: Solve for x
    x = 1,291,861,108,386.24/1,294,938.40
  6. Step 6: Final answer
    x = 997,623.60

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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.