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Finding the Fourth Proportional to 715,636.76, 986,487.12 and 606,337.70

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Solution

The fourth proportional to 715,636.76, 986,487.12 and 606,337.70 is: 835,821.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,636.76 : 986,487.12 = 606,337.70 : x
  2. Step 2: Convert to fraction form
    715,636.76/986,487.12 = 606,337.70/x
  3. Step 3: Cross multiply
    715,636.76x = 986,487.12 × 606,337.70
  4. Step 4: Simplify right side
    715,636.76x = 598,144,331,420.42
  5. Step 5: Solve for x
    x = 598,144,331,420.42/715,636.76
  6. Step 6: Final answer
    x = 835,821.14

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Double scale
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1.5x scale

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.