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Finding the Fourth Proportional to 404,638.40, 607,613.70 and 293,101.40

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Solution

The fourth proportional to 404,638.40, 607,613.70 and 293,101.40 is: 440,127.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,638.40 : 607,613.70 = 293,101.40 : x
  2. Step 2: Convert to fraction form
    404,638.40/607,613.70 = 293,101.40/x
  3. Step 3: Cross multiply
    404,638.40x = 607,613.70 × 293,101.40
  4. Step 4: Simplify right side
    404,638.40x = 178,092,426,129.18
  5. Step 5: Solve for x
    x = 178,092,426,129.18/404,638.40
  6. Step 6: Final answer
    x = 440,127.35

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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.