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Finding the Fourth Proportional to 446,420.20, 623,588.60 and 446,420.20

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Solution

The fourth proportional to 446,420.20, 623,588.60 and 446,420.20 is: 623,588.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,420.20 : 623,588.60 = 446,420.20 : x
  2. Step 2: Convert to fraction form
    446,420.20/623,588.60 = 446,420.20/x
  3. Step 3: Cross multiply
    446,420.20x = 623,588.60 × 446,420.20
  4. Step 4: Simplify right side
    446,420.20x = 278,382,547,529.72
  5. Step 5: Solve for x
    x = 278,382,547,529.72/446,420.20
  6. Step 6: Final answer
    x = 623,588.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.