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Finding the Fourth Proportional to 874,662.60, 1,312,512.30 and 575,999.40

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Solution

The fourth proportional to 874,662.60, 1,312,512.30 and 575,999.40 is: 864,340.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,662.60 : 1,312,512.30 = 575,999.40 : x
  2. Step 2: Convert to fraction form
    874,662.60/1,312,512.30 = 575,999.40/x
  3. Step 3: Cross multiply
    874,662.60x = 1,312,512.30 × 575,999.40
  4. Step 4: Simplify right side
    874,662.60x = 756,006,297,292.62
  5. Step 5: Solve for x
    x = 756,006,297,292.62/874,662.60
  6. Step 6: Final answer
    x = 864,340.49

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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.