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Finding the Fourth Proportional to 1,354,896, 1,870,048.08 and 811,153.17

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Solution

The fourth proportional to 1,354,896, 1,870,048.08 and 811,153.17 is: 1,119,565.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354,896 : 1,870,048.08 = 811,153.17 : x
  2. Step 2: Convert to fraction form
    1,354,896/1,870,048.08 = 811,153.17/x
  3. Step 3: Cross multiply
    1,354,896x = 1,870,048.08 × 811,153.17
  4. Step 4: Simplify right side
    1,354,896x = 1,516,895,428,144.41
  5. Step 5: Solve for x
    x = 1,516,895,428,144.41/1,354,896
  6. Step 6: Final answer
    x = 1,119,565.95

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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.