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Finding the Fourth Proportional to 541,349.77, 812,304.64 and 392,814.67

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Solution

The fourth proportional to 541,349.77, 812,304.64 and 392,814.67 is: 589,425.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,349.77 : 812,304.64 = 392,814.67 : x
  2. Step 2: Convert to fraction form
    541,349.77/812,304.64 = 392,814.67/x
  3. Step 3: Cross multiply
    541,349.77x = 812,304.64 × 392,814.67
  4. Step 4: Simplify right side
    541,349.77x = 319,085,179,101.07
  5. Step 5: Solve for x
    x = 319,085,179,101.07/541,349.77
  6. Step 6: Final answer
    x = 589,425.17

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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.