Home / 836,185.11-1,153,916.09-487,303.28

Finding the Fourth Proportional to 836,185.11, 1,153,916.09 and 487,303.28

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Solution

The fourth proportional to 836,185.11, 1,153,916.09 and 487,303.28 is: 672,467.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,185.11 : 1,153,916.09 = 487,303.28 : x
  2. Step 2: Convert to fraction form
    836,185.11/1,153,916.09 = 487,303.28/x
  3. Step 3: Cross multiply
    836,185.11x = 1,153,916.09 × 487,303.28
  4. Step 4: Simplify right side
    836,185.11x = 562,307,095,501.78
  5. Step 5: Solve for x
    x = 562,307,095,501.78/836,185.11
  6. Step 6: Final answer
    x = 672,467.24

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Double scale
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Similar ratio
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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.