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Finding the Fourth Proportional to 899,411.72, 1,241,266.74 and 497,081.48

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Solution

The fourth proportional to 899,411.72, 1,241,266.74 and 497,081.48 is: 686,015.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,411.72 : 1,241,266.74 = 497,081.48 : x
  2. Step 2: Convert to fraction form
    899,411.72/1,241,266.74 = 497,081.48/x
  3. Step 3: Cross multiply
    899,411.72x = 1,241,266.74 × 497,081.48
  4. Step 4: Simplify right side
    899,411.72x = 617,010,708,193.98
  5. Step 5: Solve for x
    x = 617,010,708,193.98/899,411.72
  6. Step 6: Final answer
    x = 686,015.86

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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.