Home / 867,330.96-1,196,966.88-485,354.40

Finding the Fourth Proportional to 867,330.96, 1,196,966.88 and 485,354.40

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Solution

The fourth proportional to 867,330.96, 1,196,966.88 and 485,354.40 is: 669,817.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,330.96 : 1,196,966.88 = 485,354.40 : x
  2. Step 2: Convert to fraction form
    867,330.96/1,196,966.88 = 485,354.40/x
  3. Step 3: Cross multiply
    867,330.96x = 1,196,966.88 × 485,354.40
  4. Step 4: Simplify right side
    867,330.96x = 580,953,141,862.27
  5. Step 5: Solve for x
    x = 580,953,141,862.27/867,330.96
  6. Step 6: Final answer
    x = 669,817.14

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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.