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Finding the Fourth Proportional to 908,456,428.10, 1,362,684,642.15 and 908,456,428.10

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Solution

The fourth proportional to 908,456,428.10, 1,362,684,642.15 and 908,456,428.10 is: 1,362,684,642.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,456,428.10 : 1,362,684,642.15 = 908,456,428.10 : x
  2. Step 2: Convert to fraction form
    908,456,428.10/1,362,684,642.15 = 908,456,428.10/x
  3. Step 3: Cross multiply
    908,456,428.10x = 1,362,684,642.15 × 908,456,428.10
  4. Step 4: Simplify right side
    908,456,428.10x = 1,237,939,622,634,315,776
  5. Step 5: Solve for x
    x = 1,237,939,622,634,315,776/908,456,428.10
  6. Step 6: Final answer
    x = 1,362,684,642.15

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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.