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Finding the Fourth Proportional to 610,702.96, 915,611.64 and 410,526.88

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Solution

The fourth proportional to 610,702.96, 915,611.64 and 410,526.88 is: 615,492.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,702.96 : 915,611.64 = 410,526.88 : x
  2. Step 2: Convert to fraction form
    610,702.96/915,611.64 = 410,526.88/x
  3. Step 3: Cross multiply
    610,702.96x = 915,611.64 × 410,526.88
  4. Step 4: Simplify right side
    610,702.96x = 375,883,189,860.88
  5. Step 5: Solve for x
    x = 375,883,189,860.88/610,702.96
  6. Step 6: Final answer
    x = 615,492.66

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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.