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Finding the Fourth Proportional to 622,406.10, 933,609.15 and 616,501.20

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Solution

The fourth proportional to 622,406.10, 933,609.15 and 616,501.20 is: 924,751.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,406.10 : 933,609.15 = 616,501.20 : x
  2. Step 2: Convert to fraction form
    622,406.10/933,609.15 = 616,501.20/x
  3. Step 3: Cross multiply
    622,406.10x = 933,609.15 × 616,501.20
  4. Step 4: Simplify right side
    622,406.10x = 575,571,161,305.98
  5. Step 5: Solve for x
    x = 575,571,161,305.98/622,406.10
  6. Step 6: Final answer
    x = 924,751.80

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Double scale
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Similar ratio
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1.5x scale

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.