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Finding the Fourth Proportional to 534,459.90, 737,545.54 and 289,442.67

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Solution

The fourth proportional to 534,459.90, 737,545.54 and 289,442.67 is: 399,425.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,459.90 : 737,545.54 = 289,442.67 : x
  2. Step 2: Convert to fraction form
    534,459.90/737,545.54 = 289,442.67/x
  3. Step 3: Cross multiply
    534,459.90x = 737,545.54 × 289,442.67
  4. Step 4: Simplify right side
    534,459.90x = 213,477,145,209.25
  5. Step 5: Solve for x
    x = 213,477,145,209.25/534,459.90
  6. Step 6: Final answer
    x = 399,425.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.