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Finding the Fourth Proportional to 673,294.29, 928,305.69 and 431,178.81

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Solution

The fourth proportional to 673,294.29, 928,305.69 and 431,178.81 is: 594,488.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,294.29 : 928,305.69 = 431,178.81 : x
  2. Step 2: Convert to fraction form
    673,294.29/928,305.69 = 431,178.81/x
  3. Step 3: Cross multiply
    673,294.29x = 928,305.69 × 431,178.81
  4. Step 4: Simplify right side
    673,294.29x = 400,265,742,730.43
  5. Step 5: Solve for x
    x = 400,265,742,730.43/673,294.29
  6. Step 6: Final answer
    x = 594,488.54

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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.