Home / 663,985.26-916,302.56-362,185.74

Finding the Fourth Proportional to 663,985.26, 916,302.56 and 362,185.74

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Solution

The fourth proportional to 663,985.26, 916,302.56 and 362,185.74 is: 499,817.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,985.26 : 916,302.56 = 362,185.74 : x
  2. Step 2: Convert to fraction form
    663,985.26/916,302.56 = 362,185.74/x
  3. Step 3: Cross multiply
    663,985.26x = 916,302.56 × 362,185.74
  4. Step 4: Simplify right side
    663,985.26x = 331,871,718,946.57
  5. Step 5: Solve for x
    x = 331,871,718,946.57/663,985.26
  6. Step 6: Final answer
    x = 499,817.90

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Half scale
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Double scale
Find fourth proportional to 663,986.26, 916,303.94 and 362,186.74
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.