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Finding the Fourth Proportional to 567,746.91, 783,490.18 and 309,624.34

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Solution

The fourth proportional to 567,746.91, 783,490.18 and 309,624.34 is: 427,281.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,746.91 : 783,490.18 = 309,624.34 : x
  2. Step 2: Convert to fraction form
    567,746.91/783,490.18 = 309,624.34/x
  3. Step 3: Cross multiply
    567,746.91x = 783,490.18 × 309,624.34
  4. Step 4: Simplify right side
    567,746.91x = 242,587,629,878.98
  5. Step 5: Solve for x
    x = 242,587,629,878.98/567,746.91
  6. Step 6: Final answer
    x = 427,281.29

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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.