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Finding the Fourth Proportional to 358,706,685.60, 537,721,480.80 and 194,702,680.80

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Solution

The fourth proportional to 358,706,685.60, 537,721,480.80 and 194,702,680.80 is: 291,870,260.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,706,685.60 : 537,721,480.80 = 194,702,680.80 : x
  2. Step 2: Convert to fraction form
    358,706,685.60/537,721,480.80 = 194,702,680.80/x
  3. Step 3: Cross multiply
    358,706,685.60x = 537,721,480.80 × 194,702,680.80
  4. Step 4: Simplify right side
    358,706,685.60x = 104,695,813,835,505,728
  5. Step 5: Solve for x
    x = 104,695,813,835,505,728/358,706,685.60
  6. Step 6: Final answer
    x = 291,870,260.68

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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.