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Finding the Fourth Proportional to 1,244,703,073.65, 1,717,788,158.16 and 708,877,395.03

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Solution

The fourth proportional to 1,244,703,073.65, 1,717,788,158.16 and 708,877,395.03 is: 978,306,570.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244,703,073.65 : 1,717,788,158.16 = 708,877,395.03 : x
  2. Step 2: Convert to fraction form
    1,244,703,073.65/1,717,788,158.16 = 708,877,395.03/x
  3. Step 3: Cross multiply
    1,244,703,073.65x = 1,717,788,158.16 × 708,877,395.03
  4. Step 4: Simplify right side
    1,244,703,073.65x = 1,217,701,194,769,842,432
  5. Step 5: Solve for x
    x = 1,217,701,194,769,842,432/1,244,703,073.65
  6. Step 6: Final answer
    x = 978,306,570.10

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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.