Home / 417,410,635.78-623,305,079.65-340,885,464.58

Finding the Fourth Proportional to 417,410,635.78, 623,305,079.65 and 340,885,464.58

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Solution

The fourth proportional to 417,410,635.78, 623,305,079.65 and 340,885,464.58 is: 509,032,649.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,410,635.78 : 623,305,079.65 = 340,885,464.58 : x
  2. Step 2: Convert to fraction form
    417,410,635.78/623,305,079.65 = 340,885,464.58/x
  3. Step 3: Cross multiply
    417,410,635.78x = 623,305,079.65 × 340,885,464.58
  4. Step 4: Simplify right side
    417,410,635.78x = 212,475,641,651,564,128
  5. Step 5: Solve for x
    x = 212,475,641,651,564,128/417,410,635.78
  6. Step 6: Final answer
    x = 509,032,649.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.