Home / 619,664.30-928,114.05-509,072.30

Finding the Fourth Proportional to 619,664.30, 928,114.05 and 509,072.30

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Solution

The fourth proportional to 619,664.30, 928,114.05 and 509,072.30 is: 762,472.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,664.30 : 928,114.05 = 509,072.30 : x
  2. Step 2: Convert to fraction form
    619,664.30/928,114.05 = 509,072.30/x
  3. Step 3: Cross multiply
    619,664.30x = 928,114.05 × 509,072.30
  4. Step 4: Simplify right side
    619,664.30x = 472,477,154,095.82
  5. Step 5: Solve for x
    x = 472,477,154,095.82/619,664.30
  6. Step 6: Final answer
    x = 762,472.77

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Double scale
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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.