Home / 728,698,653,673.65-1,005,635,752,492.10-403,537,945,485.75

Finding the Fourth Proportional to 728,698,653,673.65, 1,005,635,752,492.10 and 403,537,945,485.75

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Solution

The fourth proportional to 728,698,653,673.65, 1,005,635,752,492.10 and 403,537,945,485.75 is: 556,899,869,955.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,698,653,673.65 : 1,005,635,752,492.10 = 403,537,945,485.75 : x
  2. Step 2: Convert to fraction form
    728,698,653,673.65/1,005,635,752,492.10 = 403,537,945,485.75/x
  3. Step 3: Cross multiply
    728,698,653,673.65x = 1,005,635,752,492.10 × 403,537,945,485.75
  4. Step 4: Simplify right side
    728,698,653,673.65x = 405,812,185,467,678,187,585,536
  5. Step 5: Solve for x
    x = 405,812,185,467,678,187,585,536/728,698,653,673.65
  6. Step 6: Final answer
    x = 556,899,869,955.60

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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.