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Finding the Fourth Proportional to 1,229,874, 1,697,302.14 and 678,587

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Solution

The fourth proportional to 1,229,874, 1,697,302.14 and 678,587 is: 936,492.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,874 : 1,697,302.14 = 678,587 : x
  2. Step 2: Convert to fraction form
    1,229,874/1,697,302.14 = 678,587/x
  3. Step 3: Cross multiply
    1,229,874x = 1,697,302.14 × 678,587
  4. Step 4: Simplify right side
    1,229,874x = 1,151,767,167,276.18
  5. Step 5: Solve for x
    x = 1,151,767,167,276.18/1,229,874
  6. Step 6: Final answer
    x = 936,492.00

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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.