Home / 567,271.08-782,830.17-312,622.47

Finding the Fourth Proportional to 567,271.08, 782,830.17 and 312,622.47

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Solution

The fourth proportional to 567,271.08, 782,830.17 and 312,622.47 is: 431,416.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,271.08 : 782,830.17 = 312,622.47 : x
  2. Step 2: Convert to fraction form
    567,271.08/782,830.17 = 312,622.47/x
  3. Step 3: Cross multiply
    567,271.08x = 782,830.17 × 312,622.47
  4. Step 4: Simplify right side
    567,271.08x = 244,730,301,335.92
  5. Step 5: Solve for x
    x = 244,730,301,335.92/567,271.08
  6. Step 6: Final answer
    x = 431,416.85

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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.