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Finding the Fourth Proportional to 622,666.20, 933,999.30 and 561,648.90

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Solution

The fourth proportional to 622,666.20, 933,999.30 and 561,648.90 is: 842,473.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,666.20 : 933,999.30 = 561,648.90 : x
  2. Step 2: Convert to fraction form
    622,666.20/933,999.30 = 561,648.90/x
  3. Step 3: Cross multiply
    622,666.20x = 933,999.30 × 561,648.90
  4. Step 4: Simplify right side
    622,666.20x = 524,579,679,445.77
  5. Step 5: Solve for x
    x = 524,579,679,445.77/622,666.20
  6. Step 6: Final answer
    x = 842,473.35

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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.