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Finding the Fourth Proportional to 541,018.01, 811,665.41 and 316,567.22

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Solution

The fourth proportional to 541,018.01, 811,665.41 and 316,567.22 is: 474,931.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,018.01 : 811,665.41 = 316,567.22 : x
  2. Step 2: Convert to fraction form
    541,018.01/811,665.41 = 316,567.22/x
  3. Step 3: Cross multiply
    541,018.01x = 811,665.41 × 316,567.22
  4. Step 4: Simplify right side
    541,018.01x = 256,946,666,543.22
  5. Step 5: Solve for x
    x = 256,946,666,543.22/541,018.01
  6. Step 6: Final answer
    x = 474,931.82

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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.