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Finding the Fourth Proportional to 393,312,247.40, 589,968,371.10 and 393,312,247.40

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Solution

The fourth proportional to 393,312,247.40, 589,968,371.10 and 393,312,247.40 is: 589,968,371.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,312,247.40 : 589,968,371.10 = 393,312,247.40 : x
  2. Step 2: Convert to fraction form
    393,312,247.40/589,968,371.10 = 393,312,247.40/x
  3. Step 3: Cross multiply
    393,312,247.40x = 589,968,371.10 × 393,312,247.40
  4. Step 4: Simplify right side
    393,312,247.40x = 232,041,785,932,258,208
  5. Step 5: Solve for x
    x = 232,041,785,932,258,208/393,312,247.40
  6. Step 6: Final answer
    x = 589,968,371.10

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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.