Home / 728,698,653,700.30-1,005,635,752,528.90-403,537,945,512.20

Finding the Fourth Proportional to 728,698,653,700.30, 1,005,635,752,528.90 and 403,537,945,512.20

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Solution

The fourth proportional to 728,698,653,700.30, 1,005,635,752,528.90 and 403,537,945,512.20 is: 556,899,869,992.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,698,653,700.30 : 1,005,635,752,528.90 = 403,537,945,512.20 : x
  2. Step 2: Convert to fraction form
    728,698,653,700.30/1,005,635,752,528.90 = 403,537,945,512.20/x
  3. Step 3: Cross multiply
    728,698,653,700.30x = 1,005,635,752,528.90 × 403,537,945,512.20
  4. Step 4: Simplify right side
    728,698,653,700.30x = 405,812,185,509,127,507,673,088
  5. Step 5: Solve for x
    x = 405,812,185,509,127,507,673,088/728,698,653,700.30
  6. Step 6: Final answer
    x = 556,899,869,992.12

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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.