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Finding the Fourth Proportional to 334,883.40, 502,380.45 and 155,148.45

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Solution

The fourth proportional to 334,883.40, 502,380.45 and 155,148.45 is: 232,748.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,883.40 : 502,380.45 = 155,148.45 : x
  2. Step 2: Convert to fraction form
    334,883.40/502,380.45 = 155,148.45/x
  3. Step 3: Cross multiply
    334,883.40x = 502,380.45 × 155,148.45
  4. Step 4: Simplify right side
    334,883.40x = 77,943,548,127.80
  5. Step 5: Solve for x
    x = 77,943,548,127.80/334,883.40
  6. Step 6: Final answer
    x = 232,748.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.