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Finding the Fourth Proportional to 978,828,557.16, 1,350,819,048.94 and 532,770,360.64

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Solution

The fourth proportional to 978,828,557.16, 1,350,819,048.94 and 532,770,360.64 is: 735,242,496.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,828,557.16 : 1,350,819,048.94 = 532,770,360.64 : x
  2. Step 2: Convert to fraction form
    978,828,557.16/1,350,819,048.94 = 532,770,360.64/x
  3. Step 3: Cross multiply
    978,828,557.16x = 1,350,819,048.94 × 532,770,360.64
  4. Step 4: Simplify right side
    978,828,557.16x = 719,676,351,863,145,600
  5. Step 5: Solve for x
    x = 719,676,351,863,145,600/978,828,557.16
  6. Step 6: Final answer
    x = 735,242,496.35

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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.