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Finding the Fourth Proportional to 908,335, 1,253,502.30 and 505,952.92

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Solution

The fourth proportional to 908,335, 1,253,502.30 and 505,952.92 is: 698,215.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,335 : 1,253,502.30 = 505,952.92 : x
  2. Step 2: Convert to fraction form
    908,335/1,253,502.30 = 505,952.92/x
  3. Step 3: Cross multiply
    908,335x = 1,253,502.30 × 505,952.92
  4. Step 4: Simplify right side
    908,335x = 634,213,148,911.72
  5. Step 5: Solve for x
    x = 634,213,148,911.72/908,335
  6. Step 6: Final answer
    x = 698,215.03

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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.