Home / 1,230,374.66-1,697,921.72-686,533.37

Finding the Fourth Proportional to 1,230,374.66, 1,697,921.72 and 686,533.37

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Solution

The fourth proportional to 1,230,374.66, 1,697,921.72 and 686,533.37 is: 947,418.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,374.66 : 1,697,921.72 = 686,533.37 : x
  2. Step 2: Convert to fraction form
    1,230,374.66/1,697,921.72 = 686,533.37/x
  3. Step 3: Cross multiply
    1,230,374.66x = 1,697,921.72 × 686,533.37
  4. Step 4: Simplify right side
    1,230,374.66x = 1,165,679,908,505.52
  5. Step 5: Solve for x
    x = 1,165,679,908,505.52/1,230,374.66
  6. Step 6: Final answer
    x = 947,418.66

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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.