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Finding the Fourth Proportional to 679,083.86, 937,116.15 and 384,706.15

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Solution

The fourth proportional to 679,083.86, 937,116.15 and 384,706.15 is: 530,883.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,083.86 : 937,116.15 = 384,706.15 : x
  2. Step 2: Convert to fraction form
    679,083.86/937,116.15 = 384,706.15/x
  3. Step 3: Cross multiply
    679,083.86x = 937,116.15 × 384,706.15
  4. Step 4: Simplify right side
    679,083.86x = 360,514,346,169.32
  5. Step 5: Solve for x
    x = 360,514,346,169.32/679,083.86
  6. Step 6: Final answer
    x = 530,883.40

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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.