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Finding the Fourth Proportional to 424,448.48, 585,822.14 and 243,281.88

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Solution

The fourth proportional to 424,448.48, 585,822.14 and 243,281.88 is: 335,776.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,448.48 : 585,822.14 = 243,281.88 : x
  2. Step 2: Convert to fraction form
    424,448.48/585,822.14 = 243,281.88/x
  3. Step 3: Cross multiply
    424,448.48x = 585,822.14 × 243,281.88
  4. Step 4: Simplify right side
    424,448.48x = 142,519,911,564.82
  5. Step 5: Solve for x
    x = 142,519,911,564.82/424,448.48
  6. Step 6: Final answer
    x = 335,776.70

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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.