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Finding the Fourth Proportional to 334,903.80, 502,307.10 and 98,221.80

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Solution

The fourth proportional to 334,903.80, 502,307.10 and 98,221.80 is: 147,318.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,903.80 : 502,307.10 = 98,221.80 : x
  2. Step 2: Convert to fraction form
    334,903.80/502,307.10 = 98,221.80/x
  3. Step 3: Cross multiply
    334,903.80x = 502,307.10 × 98,221.80
  4. Step 4: Simplify right side
    334,903.80x = 49,337,507,514.78
  5. Step 5: Solve for x
    x = 49,337,507,514.78/334,903.80
  6. Step 6: Final answer
    x = 147,318.45

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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.