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Finding the Fourth Proportional to 622,641.70, 933,962.55 and 561,624.40

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Solution

The fourth proportional to 622,641.70, 933,962.55 and 561,624.40 is: 842,436.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,641.70 : 933,962.55 = 561,624.40 : x
  2. Step 2: Convert to fraction form
    622,641.70/933,962.55 = 561,624.40/x
  3. Step 3: Cross multiply
    622,641.70x = 933,962.55 × 561,624.40
  4. Step 4: Simplify right side
    622,641.70x = 524,536,156,766.22
  5. Step 5: Solve for x
    x = 524,536,156,766.22/622,641.70
  6. Step 6: Final answer
    x = 842,436.60

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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.