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Finding the Fourth Proportional to 1,668,005.95, 2,301,823.23 and 942,828.24

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Solution

The fourth proportional to 1,668,005.95, 2,301,823.23 and 942,828.24 is: 1,301,088.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668,005.95 : 2,301,823.23 = 942,828.24 : x
  2. Step 2: Convert to fraction form
    1,668,005.95/2,301,823.23 = 942,828.24/x
  3. Step 3: Cross multiply
    1,668,005.95x = 2,301,823.23 × 942,828.24
  4. Step 4: Simplify right side
    1,668,005.95x = 2,170,223,944,732.02
  5. Step 5: Solve for x
    x = 2,170,223,944,732.02/1,668,005.95
  6. Step 6: Final answer
    x = 1,301,088.85

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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.