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Finding the Fourth Proportional to 624,552.75, 861,883.20 and 338,075.19

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Solution

The fourth proportional to 624,552.75, 861,883.20 and 338,075.19 is: 466,543.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,552.75 : 861,883.20 = 338,075.19 : x
  2. Step 2: Convert to fraction form
    624,552.75/861,883.20 = 338,075.19/x
  3. Step 3: Cross multiply
    624,552.75x = 861,883.20 × 338,075.19
  4. Step 4: Simplify right side
    624,552.75x = 291,381,326,597.81
  5. Step 5: Solve for x
    x = 291,381,326,597.81/624,552.75
  6. Step 6: Final answer
    x = 466,543.98

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.