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Finding the Fourth Proportional to 655,448,052.40, 983,172,078.60 and 349,338,036.40

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Solution

The fourth proportional to 655,448,052.40, 983,172,078.60 and 349,338,036.40 is: 524,007,054.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,448,052.40 : 983,172,078.60 = 349,338,036.40 : x
  2. Step 2: Convert to fraction form
    655,448,052.40/983,172,078.60 = 349,338,036.40/x
  3. Step 3: Cross multiply
    655,448,052.40x = 983,172,078.60 × 349,338,036.40
  4. Step 4: Simplify right side
    655,448,052.40x = 343,459,403,381,430,464
  5. Step 5: Solve for x
    x = 343,459,403,381,430,464/655,448,052.40
  6. Step 6: Final answer
    x = 524,007,054.60

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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.