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Finding the Fourth Proportional to 659,710,030.80, 989,565,046.20 and 250,713,037.20

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Solution

The fourth proportional to 659,710,030.80, 989,565,046.20 and 250,713,037.20 is: 376,069,555.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,710,030.80 : 989,565,046.20 = 250,713,037.20 : x
  2. Step 2: Convert to fraction form
    659,710,030.80/989,565,046.20 = 250,713,037.20/x
  3. Step 3: Cross multiply
    659,710,030.80x = 989,565,046.20 × 250,713,037.20
  4. Step 4: Simplify right side
    659,710,030.80x = 248,096,858,239,760,320
  5. Step 5: Solve for x
    x = 248,096,858,239,760,320/659,710,030.80
  6. Step 6: Final answer
    x = 376,069,555.80

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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.