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Finding the Fourth Proportional to 260,416.41, 390,178.16 and 174,866.91

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Solution

The fourth proportional to 260,416.41, 390,178.16 and 174,866.91 is: 262,000.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,416.41 : 390,178.16 = 174,866.91 : x
  2. Step 2: Convert to fraction form
    260,416.41/390,178.16 = 174,866.91/x
  3. Step 3: Cross multiply
    260,416.41x = 390,178.16 × 174,866.91
  4. Step 4: Simplify right side
    260,416.41x = 68,229,249,188.69
  5. Step 5: Solve for x
    x = 68,229,249,188.69/260,416.41
  6. Step 6: Final answer
    x = 262,000.58

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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.