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Finding the Fourth Proportional to 655,509,019.68, 904,591,745.55 and 358,144,862.22

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Solution

The fourth proportional to 655,509,019.68, 904,591,745.55 and 358,144,862.22 is: 494,234,062.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,509,019.68 : 904,591,745.55 = 358,144,862.22 : x
  2. Step 2: Convert to fraction form
    655,509,019.68/904,591,745.55 = 358,144,862.22/x
  3. Step 3: Cross multiply
    655,509,019.68x = 904,591,745.55 × 358,144,862.22
  4. Step 4: Simplify right side
    655,509,019.68x = 323,974,886,075,354,048
  5. Step 5: Solve for x
    x = 323,974,886,075,354,048/655,509,019.68
  6. Step 6: Final answer
    x = 494,234,062.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.