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Finding the Fourth Proportional to 884,311.16, 1,219,482.44 and 561,460.76

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Solution

The fourth proportional to 884,311.16, 1,219,482.44 and 561,460.76 is: 774,265.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,311.16 : 1,219,482.44 = 561,460.76 : x
  2. Step 2: Convert to fraction form
    884,311.16/1,219,482.44 = 561,460.76/x
  3. Step 3: Cross multiply
    884,311.16x = 1,219,482.44 × 561,460.76
  4. Step 4: Simplify right side
    884,311.16x = 684,691,537,569.05
  5. Step 5: Solve for x
    x = 684,691,537,569.05/884,311.16
  6. Step 6: Final answer
    x = 774,265.40

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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.