Home / 1,191,405.56-1,644,152.28-647,541.40

Finding the Fourth Proportional to 1,191,405.56, 1,644,152.28 and 647,541.40

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Solution

The fourth proportional to 1,191,405.56, 1,644,152.28 and 647,541.40 is: 893,613.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,405.56 : 1,644,152.28 = 647,541.40 : x
  2. Step 2: Convert to fraction form
    1,191,405.56/1,644,152.28 = 647,541.40/x
  3. Step 3: Cross multiply
    1,191,405.56x = 1,644,152.28 × 647,541.40
  4. Step 4: Simplify right side
    1,191,405.56x = 1,064,656,669,204.39
  5. Step 5: Solve for x
    x = 1,064,656,669,204.39/1,191,405.56
  6. Step 6: Final answer
    x = 893,613.98

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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.