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Finding the Fourth Proportional to 562,407.70, 843,685.55 and 207,670.90

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Solution

The fourth proportional to 562,407.70, 843,685.55 and 207,670.90 is: 311,533.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,407.70 : 843,685.55 = 207,670.90 : x
  2. Step 2: Convert to fraction form
    562,407.70/843,685.55 = 207,670.90/x
  3. Step 3: Cross multiply
    562,407.70x = 843,685.55 × 207,670.90
  4. Step 4: Simplify right side
    562,407.70x = 175,208,937,485.50
  5. Step 5: Solve for x
    x = 175,208,937,485.50/562,407.70
  6. Step 6: Final answer
    x = 311,533.67

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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.