Home / 1,189,552.35-1,641,583.51-645,688.05

Finding the Fourth Proportional to 1,189,552.35, 1,641,583.51 and 645,688.05

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Solution

The fourth proportional to 1,189,552.35, 1,641,583.51 and 645,688.05 is: 891,050.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,552.35 : 1,641,583.51 = 645,688.05 : x
  2. Step 2: Convert to fraction form
    1,189,552.35/1,641,583.51 = 645,688.05/x
  3. Step 3: Cross multiply
    1,189,552.35x = 1,641,583.51 × 645,688.05
  4. Step 4: Simplify right side
    1,189,552.35x = 1,059,950,853,869.84
  5. Step 5: Solve for x
    x = 1,059,950,853,869.84/1,189,552.35
  6. Step 6: Final answer
    x = 891,050.20

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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.