Home / 445,337.04-668,235.24-208,703.76

Finding the Fourth Proportional to 445,337.04, 668,235.24 and 208,703.76

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Solution

The fourth proportional to 445,337.04, 668,235.24 and 208,703.76 is: 313,163.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,337.04 : 668,235.24 = 208,703.76 : x
  2. Step 2: Convert to fraction form
    445,337.04/668,235.24 = 208,703.76/x
  3. Step 3: Cross multiply
    445,337.04x = 668,235.24 × 208,703.76
  4. Step 4: Simplify right side
    445,337.04x = 139,463,207,152.50
  5. Step 5: Solve for x
    x = 139,463,207,152.50/445,337.04
  6. Step 6: Final answer
    x = 313,163.28

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1.5x scale

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.