Home / 911,992.10-1,258,420.52-519,535.38

Finding the Fourth Proportional to 911,992.10, 1,258,420.52 and 519,535.38

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Solution

The fourth proportional to 911,992.10, 1,258,420.52 and 519,535.38 is: 716,885.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,992.10 : 1,258,420.52 = 519,535.38 : x
  2. Step 2: Convert to fraction form
    911,992.10/1,258,420.52 = 519,535.38/x
  3. Step 3: Cross multiply
    911,992.10x = 1,258,420.52 × 519,535.38
  4. Step 4: Simplify right side
    911,992.10x = 653,793,976,771.51
  5. Step 5: Solve for x
    x = 653,793,976,771.51/911,992.10
  6. Step 6: Final answer
    x = 716,885.57

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1.5x scale

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.