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Finding the Fourth Proportional to 622,373.10, 933,559.65 and 612,005.10

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Solution

The fourth proportional to 622,373.10, 933,559.65 and 612,005.10 is: 918,007.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,373.10 : 933,559.65 = 612,005.10 : x
  2. Step 2: Convert to fraction form
    622,373.10/933,559.65 = 612,005.10/x
  3. Step 3: Cross multiply
    622,373.10x = 933,559.65 × 612,005.10
  4. Step 4: Simplify right side
    622,373.10x = 571,343,266,954.22
  5. Step 5: Solve for x
    x = 571,343,266,954.22/622,373.10
  6. Step 6: Final answer
    x = 918,007.65

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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.