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Finding the Fourth Proportional to 624,290.40, 935,123.40 and 519,314.40

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Solution

The fourth proportional to 624,290.40, 935,123.40 and 519,314.40 is: 777,880.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,290.40 : 935,123.40 = 519,314.40 : x
  2. Step 2: Convert to fraction form
    624,290.40/935,123.40 = 519,314.40/x
  3. Step 3: Cross multiply
    624,290.40x = 935,123.40 × 519,314.40
  4. Step 4: Simplify right side
    624,290.40x = 485,623,047,396.96
  5. Step 5: Solve for x
    x = 485,623,047,396.96/624,290.40
  6. Step 6: Final answer
    x = 777,880.05

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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.