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Finding the Fourth Proportional to 402,897.84, 556,228.82 and 267,115.70

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Solution

The fourth proportional to 402,897.84, 556,228.82 and 267,115.70 is: 368,772.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,897.84 : 556,228.82 = 267,115.70 : x
  2. Step 2: Convert to fraction form
    402,897.84/556,228.82 = 267,115.70/x
  3. Step 3: Cross multiply
    402,897.84x = 556,228.82 × 267,115.70
  4. Step 4: Simplify right side
    402,897.84x = 148,577,452,672.84
  5. Step 5: Solve for x
    x = 148,577,452,672.84/402,897.84
  6. Step 6: Final answer
    x = 368,772.03

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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.