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Finding the Fourth Proportional to 555,539.40, 833,114.70 and 289,211.40

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Solution

The fourth proportional to 555,539.40, 833,114.70 and 289,211.40 is: 433,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,539.40 : 833,114.70 = 289,211.40 : x
  2. Step 2: Convert to fraction form
    555,539.40/833,114.70 = 289,211.40/x
  3. Step 3: Cross multiply
    555,539.40x = 833,114.70 × 289,211.40
  4. Step 4: Simplify right side
    555,539.40x = 240,946,268,747.58
  5. Step 5: Solve for x
    x = 240,946,268,747.58/555,539.40
  6. Step 6: Final answer
    x = 433,715.90

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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.