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Finding the Fourth Proportional to 525,197.40, 787,796.10 and 146,117.40

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Solution

The fourth proportional to 525,197.40, 787,796.10 and 146,117.40 is: 219,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,197.40 : 787,796.10 = 146,117.40 : x
  2. Step 2: Convert to fraction form
    525,197.40/787,796.10 = 146,117.40/x
  3. Step 3: Cross multiply
    525,197.40x = 787,796.10 × 146,117.40
  4. Step 4: Simplify right side
    525,197.40x = 115,110,717,862.14
  5. Step 5: Solve for x
    x = 115,110,717,862.14/525,197.40
  6. Step 6: Final answer
    x = 219,176.10

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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.