Home / 1,286,987.64-1,776,009.14-706,208.98

Finding the Fourth Proportional to 1,286,987.64, 1,776,009.14 and 706,208.98

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Solution

The fourth proportional to 1,286,987.64, 1,776,009.14 and 706,208.98 is: 974,549.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,987.64 : 1,776,009.14 = 706,208.98 : x
  2. Step 2: Convert to fraction form
    1,286,987.64/1,776,009.14 = 706,208.98/x
  3. Step 3: Cross multiply
    1,286,987.64x = 1,776,009.14 × 706,208.98
  4. Step 4: Simplify right side
    1,286,987.64x = 1,254,233,603,230.08
  5. Step 5: Solve for x
    x = 1,254,233,603,230.08/1,286,987.64
  6. Step 6: Final answer
    x = 974,549.84

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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.