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Finding the Fourth Proportional to 470,021.99, 648,003.96 and 373,547.97

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Solution

The fourth proportional to 470,021.99, 648,003.96 and 373,547.97 is: 514,998.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,021.99 : 648,003.96 = 373,547.97 : x
  2. Step 2: Convert to fraction form
    470,021.99/648,003.96 = 373,547.97/x
  3. Step 3: Cross multiply
    470,021.99x = 648,003.96 × 373,547.97
  4. Step 4: Simplify right side
    470,021.99x = 242,060,563,809.96
  5. Step 5: Solve for x
    x = 242,060,563,809.96/470,021.99
  6. Step 6: Final answer
    x = 514,998.39

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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.