Home / 885,998.80-1,329,654.30-649,802.80

Finding the Fourth Proportional to 885,998.80, 1,329,654.30 and 649,802.80

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Solution

The fourth proportional to 885,998.80, 1,329,654.30 and 649,802.80 is: 975,185.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,998.80 : 1,329,654.30 = 649,802.80 : x
  2. Step 2: Convert to fraction form
    885,998.80/1,329,654.30 = 649,802.80/x
  3. Step 3: Cross multiply
    885,998.80x = 1,329,654.30 × 649,802.80
  4. Step 4: Simplify right side
    885,998.80x = 864,013,087,172.04
  5. Step 5: Solve for x
    x = 864,013,087,172.04/885,998.80
  6. Step 6: Final answer
    x = 975,185.39

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.