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Finding the Fourth Proportional to 578,578.38, 798,252.43 and 374,785.52

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Solution

The fourth proportional to 578,578.38, 798,252.43 and 374,785.52 is: 517,083.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,578.38 : 798,252.43 = 374,785.52 : x
  2. Step 2: Convert to fraction form
    578,578.38/798,252.43 = 374,785.52/x
  3. Step 3: Cross multiply
    578,578.38x = 798,252.43 × 374,785.52
  4. Step 4: Simplify right side
    578,578.38x = 299,173,452,068.81
  5. Step 5: Solve for x
    x = 299,173,452,068.81/578,578.38
  6. Step 6: Final answer
    x = 517,083.70

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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.