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Finding the Fourth Proportional to 572,526.54, 790,111.31 and 317,877.75

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Solution

The fourth proportional to 572,526.54, 790,111.31 and 317,877.75 is: 438,685.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,526.54 : 790,111.31 = 317,877.75 : x
  2. Step 2: Convert to fraction form
    572,526.54/790,111.31 = 317,877.75/x
  3. Step 3: Cross multiply
    572,526.54x = 790,111.31 × 317,877.75
  4. Step 4: Simplify right side
    572,526.54x = 251,158,803,882.96
  5. Step 5: Solve for x
    x = 251,158,803,882.96/572,526.54
  6. Step 6: Final answer
    x = 438,685.00

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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.