Home / 1,386,535.32-1,913,228.30-774,611.51

Finding the Fourth Proportional to 1,386,535.32, 1,913,228.30 and 774,611.51

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Solution

The fourth proportional to 1,386,535.32, 1,913,228.30 and 774,611.51 is: 1,068,857.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,535.32 : 1,913,228.30 = 774,611.51 : x
  2. Step 2: Convert to fraction form
    1,386,535.32/1,913,228.30 = 774,611.51/x
  3. Step 3: Cross multiply
    1,386,535.32x = 1,913,228.30 × 774,611.51
  4. Step 4: Simplify right side
    1,386,535.32x = 1,482,008,654,808.12
  5. Step 5: Solve for x
    x = 1,482,008,654,808.12/1,386,535.32
  6. Step 6: Final answer
    x = 1,068,857.48

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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.