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Finding the Fourth Proportional to 607,039.40, 910,559.10 and 581,123.45

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Solution

The fourth proportional to 607,039.40, 910,559.10 and 581,123.45 is: 871,685.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,039.40 : 910,559.10 = 581,123.45 : x
  2. Step 2: Convert to fraction form
    607,039.40/910,559.10 = 581,123.45/x
  3. Step 3: Cross multiply
    607,039.40x = 910,559.10 × 581,123.45
  4. Step 4: Simplify right side
    607,039.40x = 529,147,245,620.90
  5. Step 5: Solve for x
    x = 529,147,245,620.90/607,039.40
  6. Step 6: Final answer
    x = 871,685.18

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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.