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Finding the Fourth Proportional to 358,706,688.60, 537,721,485.30 and 194,702,683.80

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Solution

The fourth proportional to 358,706,688.60, 537,721,485.30 and 194,702,683.80 is: 291,870,265.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,706,688.60 : 537,721,485.30 = 194,702,683.80 : x
  2. Step 2: Convert to fraction form
    358,706,688.60/537,721,485.30 = 194,702,683.80/x
  3. Step 3: Cross multiply
    358,706,688.60x = 537,721,485.30 × 194,702,683.80
  4. Step 4: Simplify right side
    358,706,688.60x = 104,695,816,324,832,240
  5. Step 5: Solve for x
    x = 104,695,816,324,832,240/358,706,688.60
  6. Step 6: Final answer
    x = 291,870,265.18

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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.