Home / 623,815.40-934,410.90-518,839.40

Finding the Fourth Proportional to 623,815.40, 934,410.90 and 518,839.40

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Solution

The fourth proportional to 623,815.40, 934,410.90 and 518,839.40 is: 777,167.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,815.40 : 934,410.90 = 518,839.40 : x
  2. Step 2: Convert to fraction form
    623,815.40/934,410.90 = 518,839.40/x
  3. Step 3: Cross multiply
    623,815.40x = 934,410.90 × 518,839.40
  4. Step 4: Simplify right side
    623,815.40x = 484,809,190,709.46
  5. Step 5: Solve for x
    x = 484,809,190,709.46/623,815.40
  6. Step 6: Final answer
    x = 777,167.72

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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.