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Finding the Fourth Proportional to 674,838.19, 930,673.17 and 559,934.59

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Solution

The fourth proportional to 674,838.19, 930,673.17 and 559,934.59 is: 772,208.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,838.19 : 930,673.17 = 559,934.59 : x
  2. Step 2: Convert to fraction form
    674,838.19/930,673.17 = 559,934.59/x
  3. Step 3: Cross multiply
    674,838.19x = 930,673.17 × 559,934.59
  4. Step 4: Simplify right side
    674,838.19x = 521,116,099,867.95
  5. Step 5: Solve for x
    x = 521,116,099,867.95/674,838.19
  6. Step 6: Final answer
    x = 772,208.96

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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.