Home / 369,758.47-510,265.02-199,992.19

Finding the Fourth Proportional to 369,758.47, 510,265.02 and 199,992.19

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Solution

The fourth proportional to 369,758.47, 510,265.02 and 199,992.19 is: 275,988.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,758.47 : 510,265.02 = 199,992.19 : x
  2. Step 2: Convert to fraction form
    369,758.47/510,265.02 = 199,992.19/x
  3. Step 3: Cross multiply
    369,758.47x = 510,265.02 × 199,992.19
  4. Step 4: Simplify right side
    369,758.47x = 102,049,018,830.19
  5. Step 5: Solve for x
    x = 102,049,018,830.19/369,758.47
  6. Step 6: Final answer
    x = 275,988.32

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Half scale
Find fourth proportional to 739,516.94, 1,020,530.04 and 399,984.38
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.