Home / 619,458,140.76-855,032,753.70-404,907,952.20

Finding the Fourth Proportional to 619,458,140.76, 855,032,753.70 and 404,907,952.20

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Solution

The fourth proportional to 619,458,140.76, 855,032,753.70 and 404,907,952.20 is: 558,890,970.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,458,140.76 : 855,032,753.70 = 404,907,952.20 : x
  2. Step 2: Convert to fraction form
    619,458,140.76/855,032,753.70 = 404,907,952.20/x
  3. Step 3: Cross multiply
    619,458,140.76x = 855,032,753.70 × 404,907,952.20
  4. Step 4: Simplify right side
    619,458,140.76x = 346,209,561,364,593,984
  5. Step 5: Solve for x
    x = 346,209,561,364,593,984/619,458,140.76
  6. Step 6: Final answer
    x = 558,890,970.32

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Double scale
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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.