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Finding the Fourth Proportional to 637,712.80, 956,223.60 and 263,312.80

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Solution

The fourth proportional to 637,712.80, 956,223.60 and 263,312.80 is: 394,826.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,712.80 : 956,223.60 = 263,312.80 : x
  2. Step 2: Convert to fraction form
    637,712.80/956,223.60 = 263,312.80/x
  3. Step 3: Cross multiply
    637,712.80x = 956,223.60 × 263,312.80
  4. Step 4: Simplify right side
    637,712.80x = 251,785,913,542.08
  5. Step 5: Solve for x
    x = 251,785,913,542.08/637,712.80
  6. Step 6: Final answer
    x = 394,826.50

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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.