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Finding the Fourth Proportional to 583,140.47, 804,730.34 and 328,573.67

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Solution

The fourth proportional to 583,140.47, 804,730.34 and 328,573.67 is: 453,429.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,140.47 : 804,730.34 = 328,573.67 : x
  2. Step 2: Convert to fraction form
    583,140.47/804,730.34 = 328,573.67/x
  3. Step 3: Cross multiply
    583,140.47x = 804,730.34 × 328,573.67
  4. Step 4: Simplify right side
    583,140.47x = 264,413,197,971.93
  5. Step 5: Solve for x
    x = 264,413,197,971.93/583,140.47
  6. Step 6: Final answer
    x = 453,429.69

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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.