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Finding the Fourth Proportional to 875,960.10, 1,313,211.15 and 370,908.90

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Solution

The fourth proportional to 875,960.10, 1,313,211.15 and 370,908.90 is: 556,054.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,960.10 : 1,313,211.15 = 370,908.90 : x
  2. Step 2: Convert to fraction form
    875,960.10/1,313,211.15 = 370,908.90/x
  3. Step 3: Cross multiply
    875,960.10x = 1,313,211.15 × 370,908.90
  4. Step 4: Simplify right side
    875,960.10x = 487,081,703,114.24
  5. Step 5: Solve for x
    x = 487,081,703,114.24/875,960.10
  6. Step 6: Final answer
    x = 556,054.67

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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.