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Finding the Fourth Proportional to 1,313,994, 1,813,314.18 and 710,382

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Solution

The fourth proportional to 1,313,994, 1,813,314.18 and 710,382 is: 980,328.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,994 : 1,813,314.18 = 710,382 : x
  2. Step 2: Convert to fraction form
    1,313,994/1,813,314.18 = 710,382/x
  3. Step 3: Cross multiply
    1,313,994x = 1,813,314.18 × 710,382
  4. Step 4: Simplify right side
    1,313,994x = 1,288,145,753,816.76
  5. Step 5: Solve for x
    x = 1,288,145,753,816.76/1,313,994
  6. Step 6: Final answer
    x = 980,328.49

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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.