Home / 708,544.89-977,755.73-386,223.21

Finding the Fourth Proportional to 708,544.89, 977,755.73 and 386,223.21

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Solution

The fourth proportional to 708,544.89, 977,755.73 and 386,223.21 is: 532,968.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,544.89 : 977,755.73 = 386,223.21 : x
  2. Step 2: Convert to fraction form
    708,544.89/977,755.73 = 386,223.21/x
  3. Step 3: Cross multiply
    708,544.89x = 977,755.73 × 386,223.21
  4. Step 4: Simplify right side
    708,544.89x = 377,631,954,705.38
  5. Step 5: Solve for x
    x = 377,631,954,705.38/708,544.89
  6. Step 6: Final answer
    x = 532,968.28

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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.