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Finding the Fourth Proportional to 674,105.04, 930,685.68 and 429,228

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Solution

The fourth proportional to 674,105.04, 930,685.68 and 429,228 is: 592,602.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,105.04 : 930,685.68 = 429,228 : x
  2. Step 2: Convert to fraction form
    674,105.04/930,685.68 = 429,228/x
  3. Step 3: Cross multiply
    674,105.04x = 930,685.68 × 429,228
  4. Step 4: Simplify right side
    674,105.04x = 399,476,353,055.04
  5. Step 5: Solve for x
    x = 399,476,353,055.04/674,105.04
  6. Step 6: Final answer
    x = 592,602.53

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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.