Home / 1,149,595.40-1,586,442.09-666,440.63

Finding the Fourth Proportional to 1,149,595.40, 1,586,442.09 and 666,440.63

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Solution

The fourth proportional to 1,149,595.40, 1,586,442.09 and 666,440.63 is: 919,688.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,595.40 : 1,586,442.09 = 666,440.63 : x
  2. Step 2: Convert to fraction form
    1,149,595.40/1,586,442.09 = 666,440.63/x
  3. Step 3: Cross multiply
    1,149,595.40x = 1,586,442.09 × 666,440.63
  4. Step 4: Simplify right side
    1,149,595.40x = 1,057,269,457,985.91
  5. Step 5: Solve for x
    x = 1,057,269,457,985.91/1,149,595.40
  6. Step 6: Final answer
    x = 919,688.32

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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.