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Finding the Fourth Proportional to 690,771.88, 953,003.04 and 418,740.52

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Solution

The fourth proportional to 690,771.88, 953,003.04 and 418,740.52 is: 577,703.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,771.88 : 953,003.04 = 418,740.52 : x
  2. Step 2: Convert to fraction form
    690,771.88/953,003.04 = 418,740.52/x
  3. Step 3: Cross multiply
    690,771.88x = 953,003.04 × 418,740.52
  4. Step 4: Simplify right side
    690,771.88x = 399,060,988,531.18
  5. Step 5: Solve for x
    x = 399,060,988,531.18/690,771.88
  6. Step 6: Final answer
    x = 577,703.00

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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.