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Finding the Fourth Proportional to 541,975.54, 812,670.09 and 430,373.74

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Solution

The fourth proportional to 541,975.54, 812,670.09 and 430,373.74 is: 645,327.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,975.54 : 812,670.09 = 430,373.74 : x
  2. Step 2: Convert to fraction form
    541,975.54/812,670.09 = 430,373.74/x
  3. Step 3: Cross multiply
    541,975.54x = 812,670.09 × 430,373.74
  4. Step 4: Simplify right side
    541,975.54x = 349,751,866,019.44
  5. Step 5: Solve for x
    x = 349,751,866,019.44/541,975.54
  6. Step 6: Final answer
    x = 645,327.77

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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.