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Finding the Fourth Proportional to 607,176.81, 910,695.96 and 207,765

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Solution

The fourth proportional to 607,176.81, 910,695.96 and 207,765 is: 311,623.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,176.81 : 910,695.96 = 207,765 : x
  2. Step 2: Convert to fraction form
    607,176.81/910,695.96 = 207,765/x
  3. Step 3: Cross multiply
    607,176.81x = 910,695.96 × 207,765
  4. Step 4: Simplify right side
    607,176.81x = 189,210,746,129.40
  5. Step 5: Solve for x
    x = 189,210,746,129.40/607,176.81
  6. Step 6: Final answer
    x = 311,623.80

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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.