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Finding the Fourth Proportional to 583,809.03, 805,656.11 and 315,537.03

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Solution

The fourth proportional to 583,809.03, 805,656.11 and 315,537.03 is: 435,440.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,809.03 : 805,656.11 = 315,537.03 : x
  2. Step 2: Convert to fraction form
    583,809.03/805,656.11 = 315,537.03/x
  3. Step 3: Cross multiply
    583,809.03x = 805,656.11 × 315,537.03
  4. Step 4: Simplify right side
    583,809.03x = 254,214,334,573.07
  5. Step 5: Solve for x
    x = 254,214,334,573.07/583,809.03
  6. Step 6: Final answer
    x = 435,440.91

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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.