Home / 1,213,784.76-1,675,021.38-669,921.60

Finding the Fourth Proportional to 1,213,784.76, 1,675,021.38 and 669,921.60

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Solution

The fourth proportional to 1,213,784.76, 1,675,021.38 and 669,921.60 is: 924,490.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,784.76 : 1,675,021.38 = 669,921.60 : x
  2. Step 2: Convert to fraction form
    1,213,784.76/1,675,021.38 = 669,921.60/x
  3. Step 3: Cross multiply
    1,213,784.76x = 1,675,021.38 × 669,921.60
  4. Step 4: Simplify right side
    1,213,784.76x = 1,122,133,002,923.81
  5. Step 5: Solve for x
    x = 1,122,133,002,923.81/1,213,784.76
  6. Step 6: Final answer
    x = 924,490.93

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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.