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Finding the Fourth Proportional to 622,397.80, 933,596.70 and 555,475.60

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Solution

The fourth proportional to 622,397.80, 933,596.70 and 555,475.60 is: 833,213.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,397.80 : 933,596.70 = 555,475.60 : x
  2. Step 2: Convert to fraction form
    622,397.80/933,596.70 = 555,475.60/x
  3. Step 3: Cross multiply
    622,397.80x = 933,596.70 × 555,475.60
  4. Step 4: Simplify right side
    622,397.80x = 518,590,187,090.52
  5. Step 5: Solve for x
    x = 518,590,187,090.52/622,397.80
  6. Step 6: Final answer
    x = 833,213.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.