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Finding the Fourth Proportional to 425,728.05, 587,804.85 and 273,159.28

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Solution

The fourth proportional to 425,728.05, 587,804.85 and 273,159.28 is: 377,152.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,728.05 : 587,804.85 = 273,159.28 : x
  2. Step 2: Convert to fraction form
    425,728.05/587,804.85 = 273,159.28/x
  3. Step 3: Cross multiply
    425,728.05x = 587,804.85 × 273,159.28
  4. Step 4: Simplify right side
    425,728.05x = 160,564,350,341.26
  5. Step 5: Solve for x
    x = 160,564,350,341.26/425,728.05
  6. Step 6: Final answer
    x = 377,152.39

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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.