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Finding the Fourth Proportional to 895,998.90, 1,236,477.94 and 493,590.90

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Solution

The fourth proportional to 895,998.90, 1,236,477.94 and 493,590.90 is: 681,155.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,998.90 : 1,236,477.94 = 493,590.90 : x
  2. Step 2: Convert to fraction form
    895,998.90/1,236,477.94 = 493,590.90/x
  3. Step 3: Cross multiply
    895,998.90x = 1,236,477.94 × 493,590.90
  4. Step 4: Simplify right side
    895,998.90x = 610,314,258,000.77
  5. Step 5: Solve for x
    x = 610,314,258,000.77/895,998.90
  6. Step 6: Final answer
    x = 681,155.14

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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.