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Finding the Fourth Proportional to 558,369.60, 837,554.40 and 345,793.20

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Solution

The fourth proportional to 558,369.60, 837,554.40 and 345,793.20 is: 518,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,369.60 : 837,554.40 = 345,793.20 : x
  2. Step 2: Convert to fraction form
    558,369.60/837,554.40 = 345,793.20/x
  3. Step 3: Cross multiply
    558,369.60x = 837,554.40 × 345,793.20
  4. Step 4: Simplify right side
    558,369.60x = 289,620,616,150.08
  5. Step 5: Solve for x
    x = 289,620,616,150.08/558,369.60
  6. Step 6: Final answer
    x = 518,689.80

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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.