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Finding the Fourth Proportional to 676,484.26, 933,194.34 and 418,278.67

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Solution

The fourth proportional to 676,484.26, 933,194.34 and 418,278.67 is: 577,005.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,484.26 : 933,194.34 = 418,278.67 : x
  2. Step 2: Convert to fraction form
    676,484.26/933,194.34 = 418,278.67/x
  3. Step 3: Cross multiply
    676,484.26x = 933,194.34 × 418,278.67
  4. Step 4: Simplify right side
    676,484.26x = 390,335,287,386.73
  5. Step 5: Solve for x
    x = 390,335,287,386.73/676,484.26
  6. Step 6: Final answer
    x = 577,005.72

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Double scale
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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.