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Finding the Fourth Proportional to 470,384.80, 705,058.80 and 260,173.60

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Solution

The fourth proportional to 470,384.80, 705,058.80 and 260,173.60 is: 389,973.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,384.80 : 705,058.80 = 260,173.60 : x
  2. Step 2: Convert to fraction form
    470,384.80/705,058.80 = 260,173.60/x
  3. Step 3: Cross multiply
    470,384.80x = 705,058.80 × 260,173.60
  4. Step 4: Simplify right side
    470,384.80x = 183,437,686,207.68
  5. Step 5: Solve for x
    x = 183,437,686,207.68/470,384.80
  6. Step 6: Final answer
    x = 389,973.67

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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.