Home / 913,919.56-1,261,248.37-506,021.38

Finding the Fourth Proportional to 913,919.56, 1,261,248.37 and 506,021.38

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Solution

The fourth proportional to 913,919.56, 1,261,248.37 and 506,021.38 is: 698,331.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,919.56 : 1,261,248.37 = 506,021.38 : x
  2. Step 2: Convert to fraction form
    913,919.56/1,261,248.37 = 506,021.38/x
  3. Step 3: Cross multiply
    913,919.56x = 1,261,248.37 × 506,021.38
  4. Step 4: Simplify right side
    913,919.56x = 638,218,636,291.98
  5. Step 5: Solve for x
    x = 638,218,636,291.98/913,919.56
  6. Step 6: Final answer
    x = 698,331.30

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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.