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Finding the Fourth Proportional to 856,887.42, 1,277,670.21 and 833,346.30

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Solution

The fourth proportional to 856,887.42, 1,277,670.21 and 833,346.30 is: 1,242,569.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,887.42 : 1,277,670.21 = 833,346.30 : x
  2. Step 2: Convert to fraction form
    856,887.42/1,277,670.21 = 833,346.30/x
  3. Step 3: Cross multiply
    856,887.42x = 1,277,670.21 × 833,346.30
  4. Step 4: Simplify right side
    856,887.42x = 1,064,741,742,123.72
  5. Step 5: Solve for x
    x = 1,064,741,742,123.72/856,887.42
  6. Step 6: Final answer
    x = 1,242,569.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.