Home / 1,209,141.56-1,668,580.93-665,277.71

Finding the Fourth Proportional to 1,209,141.56, 1,668,580.93 and 665,277.71

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Solution

The fourth proportional to 1,209,141.56, 1,668,580.93 and 665,277.71 is: 918,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,141.56 : 1,668,580.93 = 665,277.71 : x
  2. Step 2: Convert to fraction form
    1,209,141.56/1,668,580.93 = 665,277.71/x
  3. Step 3: Cross multiply
    1,209,141.56x = 1,668,580.93 × 665,277.71
  4. Step 4: Simplify right side
    1,209,141.56x = 1,110,069,700,060.07
  5. Step 5: Solve for x
    x = 1,110,069,700,060.07/1,209,141.56
  6. Step 6: Final answer
    x = 918,064.30

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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.