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Finding the Fourth Proportional to 713,063.10, 1,068,874.90 and 447,010.50

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Solution

The fourth proportional to 713,063.10, 1,068,874.90 and 447,010.50 is: 670,064.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,063.10 : 1,068,874.90 = 447,010.50 : x
  2. Step 2: Convert to fraction form
    713,063.10/1,068,874.90 = 447,010.50/x
  3. Step 3: Cross multiply
    713,063.10x = 1,068,874.90 × 447,010.50
  4. Step 4: Simplify right side
    713,063.10x = 477,798,303,486.45
  5. Step 5: Solve for x
    x = 477,798,303,486.45/713,063.10
  6. Step 6: Final answer
    x = 670,064.55

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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.