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Finding the Fourth Proportional to 807,068.80, 1,207,492.80 and 527,132.80

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Solution

The fourth proportional to 807,068.80, 1,207,492.80 and 527,132.80 is: 788,667.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,068.80 : 1,207,492.80 = 527,132.80 : x
  2. Step 2: Convert to fraction form
    807,068.80/1,207,492.80 = 527,132.80/x
  3. Step 3: Cross multiply
    807,068.80x = 1,207,492.80 × 527,132.80
  4. Step 4: Simplify right side
    807,068.80x = 636,509,060,643.84
  5. Step 5: Solve for x
    x = 636,509,060,643.84/807,068.80
  6. Step 6: Final answer
    x = 788,667.66

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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.