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Finding the Fourth Proportional to 617,916.10, 926,874.15 and 352,495.30

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Solution

The fourth proportional to 617,916.10, 926,874.15 and 352,495.30 is: 528,742.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,916.10 : 926,874.15 = 352,495.30 : x
  2. Step 2: Convert to fraction form
    617,916.10/926,874.15 = 352,495.30/x
  3. Step 3: Cross multiply
    617,916.10x = 926,874.15 × 352,495.30
  4. Step 4: Simplify right side
    617,916.10x = 326,718,781,566.50
  5. Step 5: Solve for x
    x = 326,718,781,566.50/617,916.10
  6. Step 6: Final answer
    x = 528,742.95

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Double scale
Find fourth proportional to 617,917.10, 926,875.65 and 352,496.30
Similar ratio
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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.