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Finding the Fourth Proportional to 314,038.26, 470,986.65 and 89,393.73

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Solution

The fourth proportional to 314,038.26, 470,986.65 and 89,393.73 is: 134,070.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,038.26 : 470,986.65 = 89,393.73 : x
  2. Step 2: Convert to fraction form
    314,038.26/470,986.65 = 89,393.73/x
  3. Step 3: Cross multiply
    314,038.26x = 470,986.65 × 89,393.73
  4. Step 4: Simplify right side
    314,038.26x = 42,103,253,423.70
  5. Step 5: Solve for x
    x = 42,103,253,423.70/314,038.26
  6. Step 6: Final answer
    x = 134,070.46

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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.