Home / 545,028.08-751,359.26-383,381.45

Finding the Fourth Proportional to 545,028.08, 751,359.26 and 383,381.45

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Solution

The fourth proportional to 545,028.08, 751,359.26 and 383,381.45 is: 528,518.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,028.08 : 751,359.26 = 383,381.45 : x
  2. Step 2: Convert to fraction form
    545,028.08/751,359.26 = 383,381.45/x
  3. Step 3: Cross multiply
    545,028.08x = 751,359.26 × 383,381.45
  4. Step 4: Simplify right side
    545,028.08x = 288,057,199,771.38
  5. Step 5: Solve for x
    x = 288,057,199,771.38/545,028.08
  6. Step 6: Final answer
    x = 528,518.09

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Half scale
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Double scale
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Similar ratio
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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.