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Finding the Fourth Proportional to 836,578.80, 1,151,803.80 and 709,052.40

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Solution

The fourth proportional to 836,578.80, 1,151,803.80 and 709,052.40 is: 976,225.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,578.80 : 1,151,803.80 = 709,052.40 : x
  2. Step 2: Convert to fraction form
    836,578.80/1,151,803.80 = 709,052.40/x
  3. Step 3: Cross multiply
    836,578.80x = 1,151,803.80 × 709,052.40
  4. Step 4: Simplify right side
    836,578.80x = 816,689,248,719.12
  5. Step 5: Solve for x
    x = 816,689,248,719.12/836,578.80
  6. Step 6: Final answer
    x = 976,225.13

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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.