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Finding the Fourth Proportional to 673,290.24, 928,300.14 and 431,174.76

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Solution

The fourth proportional to 673,290.24, 928,300.14 and 431,174.76 is: 594,482.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,290.24 : 928,300.14 = 431,174.76 : x
  2. Step 2: Convert to fraction form
    673,290.24/928,300.14 = 431,174.76/x
  3. Step 3: Cross multiply
    673,290.24x = 928,300.14 × 431,174.76
  4. Step 4: Simplify right side
    673,290.24x = 400,259,590,072.47
  5. Step 5: Solve for x
    x = 400,259,590,072.47/673,290.24
  6. Step 6: Final answer
    x = 594,482.98

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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.