Home / 913,851.68-1,261,115.16-511,443.68

Finding the Fourth Proportional to 913,851.68, 1,261,115.16 and 511,443.68

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Solution

The fourth proportional to 913,851.68, 1,261,115.16 and 511,443.68 is: 705,792.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,851.68 : 1,261,115.16 = 511,443.68 : x
  2. Step 2: Convert to fraction form
    913,851.68/1,261,115.16 = 511,443.68/x
  3. Step 3: Cross multiply
    913,851.68x = 1,261,115.16 × 511,443.68
  4. Step 4: Simplify right side
    913,851.68x = 644,989,378,334.19
  5. Step 5: Solve for x
    x = 644,989,378,334.19/913,851.68
  6. Step 6: Final answer
    x = 705,792.19

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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.