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Finding the Fourth Proportional to 657,992.06, 988,386.48 and 619,597.94

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Solution

The fourth proportional to 657,992.06, 988,386.48 and 619,597.94 is: 930,713.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,992.06 : 988,386.48 = 619,597.94 : x
  2. Step 2: Convert to fraction form
    657,992.06/988,386.48 = 619,597.94/x
  3. Step 3: Cross multiply
    657,992.06x = 988,386.48 × 619,597.94
  4. Step 4: Simplify right side
    657,992.06x = 612,402,226,931.85
  5. Step 5: Solve for x
    x = 612,402,226,931.85/657,992.06
  6. Step 6: Final answer
    x = 930,713.70

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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.