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Finding the Fourth Proportional to 407,501.99, 562,354.91 and 254,628.90

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Solution

The fourth proportional to 407,501.99, 562,354.91 and 254,628.90 is: 351,389.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,501.99 : 562,354.91 = 254,628.90 : x
  2. Step 2: Convert to fraction form
    407,501.99/562,354.91 = 254,628.90/x
  3. Step 3: Cross multiply
    407,501.99x = 562,354.91 × 254,628.90
  4. Step 4: Simplify right side
    407,501.99x = 143,191,808,057.98
  5. Step 5: Solve for x
    x = 143,191,808,057.98/407,501.99
  6. Step 6: Final answer
    x = 351,389.22

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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.