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Finding the Fourth Proportional to 698,248.77, 963,583.94 and 396,442.77

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Solution

The fourth proportional to 698,248.77, 963,583.94 and 396,442.77 is: 547,091.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,248.77 : 963,583.94 = 396,442.77 : x
  2. Step 2: Convert to fraction form
    698,248.77/963,583.94 = 396,442.77/x
  3. Step 3: Cross multiply
    698,248.77x = 963,583.94 × 396,442.77
  4. Step 4: Simplify right side
    698,248.77x = 382,005,886,301.11
  5. Step 5: Solve for x
    x = 382,005,886,301.11/698,248.77
  6. Step 6: Final answer
    x = 547,091.38

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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.