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Finding the Fourth Proportional to 583,455.88, 805,318.92 and 380,013.76

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Solution

The fourth proportional to 583,455.88, 805,318.92 and 380,013.76 is: 524,516.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,455.88 : 805,318.92 = 380,013.76 : x
  2. Step 2: Convert to fraction form
    583,455.88/805,318.92 = 380,013.76/x
  3. Step 3: Cross multiply
    583,455.88x = 805,318.92 × 380,013.76
  4. Step 4: Simplify right side
    583,455.88x = 306,032,270,788.34
  5. Step 5: Solve for x
    x = 306,032,270,788.34/583,455.88
  6. Step 6: Final answer
    x = 524,516.56

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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.