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Finding the Fourth Proportional to 673,026.75, 928,744.11 and 401,088.42

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Solution

The fourth proportional to 673,026.75, 928,744.11 and 401,088.42 is: 553,482.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,026.75 : 928,744.11 = 401,088.42 : x
  2. Step 2: Convert to fraction form
    673,026.75/928,744.11 = 401,088.42/x
  3. Step 3: Cross multiply
    673,026.75x = 928,744.11 × 401,088.42
  4. Step 4: Simplify right side
    673,026.75x = 372,508,507,664.21
  5. Step 5: Solve for x
    x = 372,508,507,664.21/673,026.75
  6. Step 6: Final answer
    x = 553,482.47

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Double scale
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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.