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Finding the Fourth Proportional to 648,059.10, 893,657.90 and 430,190.92

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Solution

The fourth proportional to 648,059.10, 893,657.90 and 430,190.92 is: 593,222.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,059.10 : 893,657.90 = 430,190.92 : x
  2. Step 2: Convert to fraction form
    648,059.10/893,657.90 = 430,190.92/x
  3. Step 3: Cross multiply
    648,059.10x = 893,657.90 × 430,190.92
  4. Step 4: Simplify right side
    648,059.10x = 384,443,514,166.27
  5. Step 5: Solve for x
    x = 384,443,514,166.27/648,059.10
  6. Step 6: Final answer
    x = 593,222.92

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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.