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Finding the Fourth Proportional to 589,030.22, 812,840.36 and 359,970.72

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Solution

The fourth proportional to 589,030.22, 812,840.36 and 359,970.72 is: 496,746.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,030.22 : 812,840.36 = 359,970.72 : x
  2. Step 2: Convert to fraction form
    589,030.22/812,840.36 = 359,970.72/x
  3. Step 3: Cross multiply
    589,030.22x = 812,840.36 × 359,970.72
  4. Step 4: Simplify right side
    589,030.22x = 292,598,729,634.26
  5. Step 5: Solve for x
    x = 292,598,729,634.26/589,030.22
  6. Step 6: Final answer
    x = 496,746.55

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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.