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Finding the Fourth Proportional to 315,572,384.88, 473,464,865.70 and 198,852,194.88

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Solution

The fourth proportional to 315,572,384.88, 473,464,865.70 and 198,852,194.88 is: 298,345,268.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,572,384.88 : 473,464,865.70 = 198,852,194.88 : x
  2. Step 2: Convert to fraction form
    315,572,384.88/473,464,865.70 = 198,852,194.88/x
  3. Step 3: Cross multiply
    315,572,384.88x = 473,464,865.70 × 198,852,194.88
  4. Step 4: Simplify right side
    315,572,384.88x = 94,149,527,743,009,424
  5. Step 5: Solve for x
    x = 94,149,527,743,009,424/315,572,384.88
  6. Step 6: Final answer
    x = 298,345,268.01

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