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Finding the Fourth Proportional to 579,478.79, 869,204.93 and 153,044.67

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Solution

The fourth proportional to 579,478.79, 869,204.93 and 153,044.67 is: 229,563.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,478.79 : 869,204.93 = 153,044.67 : x
  2. Step 2: Convert to fraction form
    579,478.79/869,204.93 = 153,044.67/x
  3. Step 3: Cross multiply
    579,478.79x = 869,204.93 × 153,044.67
  4. Step 4: Simplify right side
    579,478.79x = 133,027,184,168.52
  5. Step 5: Solve for x
    x = 133,027,184,168.52/579,478.79
  6. Step 6: Final answer
    x = 229,563.51

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Double scale
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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.