Home / 1,209,025.96-1,668,455.92-665,150.12

Finding the Fourth Proportional to 1,209,025.96, 1,668,455.92 and 665,150.12

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Solution

The fourth proportional to 1,209,025.96, 1,668,455.92 and 665,150.12 is: 917,907.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,025.96 : 1,668,455.92 = 665,150.12 : x
  2. Step 2: Convert to fraction form
    1,209,025.96/1,668,455.92 = 665,150.12/x
  3. Step 3: Cross multiply
    1,209,025.96x = 1,668,455.92 × 665,150.12
  4. Step 4: Simplify right side
    1,209,025.96x = 1,109,773,655,402.71
  5. Step 5: Solve for x
    x = 1,109,773,655,402.71/1,209,025.96
  6. Step 6: Final answer
    x = 917,907.22

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1.5x scale

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.