Home / 774,009.78-1,068,097.39-429,868.01

Finding the Fourth Proportional to 774,009.78, 1,068,097.39 and 429,868.01

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Solution

The fourth proportional to 774,009.78, 1,068,097.39 and 429,868.01 is: 593,197.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,009.78 : 1,068,097.39 = 429,868.01 : x
  2. Step 2: Convert to fraction form
    774,009.78/1,068,097.39 = 429,868.01/x
  3. Step 3: Cross multiply
    774,009.78x = 1,068,097.39 × 429,868.01
  4. Step 4: Simplify right side
    774,009.78x = 459,140,901,121.07
  5. Step 5: Solve for x
    x = 459,140,901,121.07/774,009.78
  6. Step 6: Final answer
    x = 593,197.81

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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.