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Finding the Fourth Proportional to 368,953.38, 553,430.22 and 284,836.38

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Solution

The fourth proportional to 368,953.38, 553,430.22 and 284,836.38 is: 427,254.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,953.38 : 553,430.22 = 284,836.38 : x
  2. Step 2: Convert to fraction form
    368,953.38/553,430.22 = 284,836.38/x
  3. Step 3: Cross multiply
    368,953.38x = 553,430.22 × 284,836.38
  4. Step 4: Simplify right side
    368,953.38x = 157,637,060,447.40
  5. Step 5: Solve for x
    x = 157,637,060,447.40/368,953.38
  6. Step 6: Final answer
    x = 427,254.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.