Finding the Fourth Proportional to 1,192,765,574, 1,645,996,840.44 and 697,812,132.08
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Solution
The fourth proportional to 1,192,765,574, 1,645,996,840.44 and 697,812,132.08 is: 962,969,245.31
Step by Step Solution
- Step 1: Write the proportion equation
1,192,765,574 : 1,645,996,840.44 = 697,812,132.08 : x - Step 2: Convert to fraction form
1,192,765,574/1,645,996,840.44 = 697,812,132.08/x - Step 3: Cross multiply
1,192,765,574x = 1,645,996,840.44 × 697,812,132.08 - Step 4: Simplify right side
1,192,765,574x = 1,148,596,564,624,380,032 - Step 5: Solve for x
x = 1,148,596,564,624,380,032/1,192,765,574 - Step 6: Final answer
x = 962,969,245.31
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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.