Home / 656,841.29-905,664.26-463,280.86

Finding the Fourth Proportional to 656,841.29, 905,664.26 and 463,280.86

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Solution

The fourth proportional to 656,841.29, 905,664.26 and 463,280.86 is: 638,779.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,841.29 : 905,664.26 = 463,280.86 : x
  2. Step 2: Convert to fraction form
    656,841.29/905,664.26 = 463,280.86/x
  3. Step 3: Cross multiply
    656,841.29x = 905,664.26 × 463,280.86
  4. Step 4: Simplify right side
    656,841.29x = 419,576,916,138.11
  5. Step 5: Solve for x
    x = 419,576,916,138.11/656,841.29
  6. Step 6: Final answer
    x = 638,779.75

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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.