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Finding the Fourth Proportional to 346,782.80, 520,174.20 and 97,464.80

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Solution

The fourth proportional to 346,782.80, 520,174.20 and 97,464.80 is: 146,197.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,782.80 : 520,174.20 = 97,464.80 : x
  2. Step 2: Convert to fraction form
    346,782.80/520,174.20 = 97,464.80/x
  3. Step 3: Cross multiply
    346,782.80x = 520,174.20 × 97,464.80
  4. Step 4: Simplify right side
    346,782.80x = 50,698,674,368.16
  5. Step 5: Solve for x
    x = 50,698,674,368.16/346,782.80
  6. Step 6: Final answer
    x = 146,197.20

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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.