Home / 1,209,036.04-1,668,469.80-665,160.19

Finding the Fourth Proportional to 1,209,036.04, 1,668,469.80 and 665,160.19

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Solution

The fourth proportional to 1,209,036.04, 1,668,469.80 and 665,160.19 is: 917,921.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,036.04 : 1,668,469.80 = 665,160.19 : x
  2. Step 2: Convert to fraction form
    1,209,036.04/1,668,469.80 = 665,160.19/x
  3. Step 3: Cross multiply
    1,209,036.04x = 1,668,469.80 × 665,160.19
  4. Step 4: Simplify right side
    1,209,036.04x = 1,109,799,689,177.26
  5. Step 5: Solve for x
    x = 1,109,799,689,177.26/1,209,036.04
  6. Step 6: Final answer
    x = 917,921.10

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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.