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Finding the Fourth Proportional to 1,569,173.10, 2,353,978.35 and 670,607.70

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Solution

The fourth proportional to 1,569,173.10, 2,353,978.35 and 670,607.70 is: 1,006,005.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569,173.10 : 2,353,978.35 = 670,607.70 : x
  2. Step 2: Convert to fraction form
    1,569,173.10/2,353,978.35 = 670,607.70/x
  3. Step 3: Cross multiply
    1,569,173.10x = 2,353,978.35 × 670,607.70
  4. Step 4: Simplify right side
    1,569,173.10x = 1,578,596,007,143.30
  5. Step 5: Solve for x
    x = 1,578,596,007,143.30/1,569,173.10
  6. Step 6: Final answer
    x = 1,006,005.01

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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.