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Finding the Fourth Proportional to 587,797.60, 879,946.80 and 351,018.40

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Solution

The fourth proportional to 587,797.60, 879,946.80 and 351,018.40 is: 525,482.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,797.60 : 879,946.80 = 351,018.40 : x
  2. Step 2: Convert to fraction form
    587,797.60/879,946.80 = 351,018.40/x
  3. Step 3: Cross multiply
    587,797.60x = 879,946.80 × 351,018.40
  4. Step 4: Simplify right side
    587,797.60x = 308,877,517,821.12
  5. Step 5: Solve for x
    x = 308,877,517,821.12/587,797.60
  6. Step 6: Final answer
    x = 525,482.78

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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.