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Finding the Fourth Proportional to 565,048.81, 779,232.20 and 371,115.22

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Solution

The fourth proportional to 565,048.81, 779,232.20 and 371,115.22 is: 511,787.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,048.81 : 779,232.20 = 371,115.22 : x
  2. Step 2: Convert to fraction form
    565,048.81/779,232.20 = 371,115.22/x
  3. Step 3: Cross multiply
    565,048.81x = 779,232.20 × 371,115.22
  4. Step 4: Simplify right side
    565,048.81x = 289,184,929,079.01
  5. Step 5: Solve for x
    x = 289,184,929,079.01/565,048.81
  6. Step 6: Final answer
    x = 511,787.52

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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.