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Finding the Fourth Proportional to 424,646.45, 585,945.18 and 243,323.51

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Solution

The fourth proportional to 424,646.45, 585,945.18 and 243,323.51 is: 335,748.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,646.45 : 585,945.18 = 243,323.51 : x
  2. Step 2: Convert to fraction form
    424,646.45/585,945.18 = 243,323.51/x
  3. Step 3: Cross multiply
    424,646.45x = 585,945.18 × 243,323.51
  4. Step 4: Simplify right side
    424,646.45x = 142,574,237,865.18
  5. Step 5: Solve for x
    x = 142,574,237,865.18/424,646.45
  6. Step 6: Final answer
    x = 335,748.10

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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.