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Finding the Fourth Proportional to 570,941.40, 856,152.90 and 215,837.40

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Solution

The fourth proportional to 570,941.40, 856,152.90 and 215,837.40 is: 323,658.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,941.40 : 856,152.90 = 215,837.40 : x
  2. Step 2: Convert to fraction form
    570,941.40/856,152.90 = 215,837.40/x
  3. Step 3: Cross multiply
    570,941.40x = 856,152.90 × 215,837.40
  4. Step 4: Simplify right side
    570,941.40x = 184,789,815,938.46
  5. Step 5: Solve for x
    x = 184,789,815,938.46/570,941.40
  6. Step 6: Final answer
    x = 323,658.11

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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.