Home / 1,319,606.40-1,821,078-715,994.40

Finding the Fourth Proportional to 1,319,606.40, 1,821,078 and 715,994.40

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Solution

The fourth proportional to 1,319,606.40, 1,821,078 and 715,994.40 is: 988,083.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,606.40 : 1,821,078 = 715,994.40 : x
  2. Step 2: Convert to fraction form
    1,319,606.40/1,821,078 = 715,994.40/x
  3. Step 3: Cross multiply
    1,319,606.40x = 1,821,078 × 715,994.40
  4. Step 4: Simplify right side
    1,319,606.40x = 1,303,881,649,963.20
  5. Step 5: Solve for x
    x = 1,303,881,649,963.20/1,319,606.40
  6. Step 6: Final answer
    x = 988,083.76

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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.