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Finding the Fourth Proportional to 676,818.54, 934,009.62 and 375,012.54

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Solution

The fourth proportional to 676,818.54, 934,009.62 and 375,012.54 is: 517,517.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,818.54 : 934,009.62 = 375,012.54 : x
  2. Step 2: Convert to fraction form
    676,818.54/934,009.62 = 375,012.54/x
  3. Step 3: Cross multiply
    676,818.54x = 934,009.62 × 375,012.54
  4. Step 4: Simplify right side
    676,818.54x = 350,265,319,980.64
  5. Step 5: Solve for x
    x = 350,265,319,980.64/676,818.54
  6. Step 6: Final answer
    x = 517,517.32

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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.