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Finding the Fourth Proportional to 424,690.05, 586,055.76 and 243,272.93

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Solution

The fourth proportional to 424,690.05, 586,055.76 and 243,272.93 is: 335,707.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,690.05 : 586,055.76 = 243,272.93 : x
  2. Step 2: Convert to fraction form
    424,690.05/586,055.76 = 243,272.93/x
  3. Step 3: Cross multiply
    424,690.05x = 586,055.76 × 243,272.93
  4. Step 4: Simplify right side
    424,690.05x = 142,571,501,878.58
  5. Step 5: Solve for x
    x = 142,571,501,878.58/424,690.05
  6. Step 6: Final answer
    x = 335,707.19

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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.