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Finding the Fourth Proportional to 397,340.70, 596,011.05 and 97,818.90

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Solution

The fourth proportional to 397,340.70, 596,011.05 and 97,818.90 is: 146,728.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,340.70 : 596,011.05 = 97,818.90 : x
  2. Step 2: Convert to fraction form
    397,340.70/596,011.05 = 97,818.90/x
  3. Step 3: Cross multiply
    397,340.70x = 596,011.05 × 97,818.90
  4. Step 4: Simplify right side
    397,340.70x = 58,301,145,298.85
  5. Step 5: Solve for x
    x = 58,301,145,298.85/397,340.70
  6. Step 6: Final answer
    x = 146,728.35

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Similar ratio
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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.