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Finding the Fourth Proportional to 994,751.50, 1,490,879.30 and 425,464.48

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Solution

The fourth proportional to 994,751.50, 1,490,879.30 and 425,464.48 is: 637,662.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,751.50 : 1,490,879.30 = 425,464.48 : x
  2. Step 2: Convert to fraction form
    994,751.50/1,490,879.30 = 425,464.48/x
  3. Step 3: Cross multiply
    994,751.50x = 1,490,879.30 × 425,464.48
  4. Step 4: Simplify right side
    994,751.50x = 634,316,186,117.26
  5. Step 5: Solve for x
    x = 634,316,186,117.26/994,751.50
  6. Step 6: Final answer
    x = 637,662.96

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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.