Home / 1,208,916.05-1,668,251.54-665,017.35

Finding the Fourth Proportional to 1,208,916.05, 1,668,251.54 and 665,017.35

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Solution

The fourth proportional to 1,208,916.05, 1,668,251.54 and 665,017.35 is: 917,695.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,916.05 : 1,668,251.54 = 665,017.35 : x
  2. Step 2: Convert to fraction form
    1,208,916.05/1,668,251.54 = 665,017.35/x
  3. Step 3: Cross multiply
    1,208,916.05x = 1,668,251.54 × 665,017.35
  4. Step 4: Simplify right side
    1,208,916.05x = 1,109,416,214,939.13
  5. Step 5: Solve for x
    x = 1,109,416,214,939.13/1,208,916.05
  6. Step 6: Final answer
    x = 917,695.00

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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.