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Finding the Fourth Proportional to 424,703.21, 586,114.52 and 243,445.23

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Solution

The fourth proportional to 424,703.21, 586,114.52 and 243,445.23 is: 335,968.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,703.21 : 586,114.52 = 243,445.23 : x
  2. Step 2: Convert to fraction form
    424,703.21/586,114.52 = 243,445.23/x
  3. Step 3: Cross multiply
    424,703.21x = 586,114.52 × 243,445.23
  4. Step 4: Simplify right side
    424,703.21x = 142,686,782,910.51
  5. Step 5: Solve for x
    x = 142,686,782,910.51/424,703.21
  6. Step 6: Final answer
    x = 335,968.23

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Half scale
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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.