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Finding the Fourth Proportional to 419,562.94, 579,038.67 and 256,210.44

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Solution

The fourth proportional to 419,562.94, 579,038.67 and 256,210.44 is: 353,595.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,562.94 : 579,038.67 = 256,210.44 : x
  2. Step 2: Convert to fraction form
    419,562.94/579,038.67 = 256,210.44/x
  3. Step 3: Cross multiply
    419,562.94x = 579,038.67 × 256,210.44
  4. Step 4: Simplify right side
    419,562.94x = 148,355,751,777.19
  5. Step 5: Solve for x
    x = 148,355,751,777.19/419,562.94
  6. Step 6: Final answer
    x = 353,595.94

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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.