Home / 1,189,152.08-1,641,021.54-645,274.04

Finding the Fourth Proportional to 1,189,152.08, 1,641,021.54 and 645,274.04

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Solution

The fourth proportional to 1,189,152.08, 1,641,021.54 and 645,274.04 is: 890,473.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,152.08 : 1,641,021.54 = 645,274.04 : x
  2. Step 2: Convert to fraction form
    1,189,152.08/1,641,021.54 = 645,274.04/x
  3. Step 3: Cross multiply
    1,189,152.08x = 1,641,021.54 × 645,274.04
  4. Step 4: Simplify right side
    1,189,152.08x = 1,058,908,598,842.82
  5. Step 5: Solve for x
    x = 1,058,908,598,842.82/1,189,152.08
  6. Step 6: Final answer
    x = 890,473.65

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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.