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Finding the Fourth Proportional to 651,806.10, 977,709.15 and 546,830.10

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Solution

The fourth proportional to 651,806.10, 977,709.15 and 546,830.10 is: 820,245.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,806.10 : 977,709.15 = 546,830.10 : x
  2. Step 2: Convert to fraction form
    651,806.10/977,709.15 = 546,830.10/x
  3. Step 3: Cross multiply
    651,806.10x = 977,709.15 × 546,830.10
  4. Step 4: Simplify right side
    651,806.10x = 534,640,792,265.42
  5. Step 5: Solve for x
    x = 534,640,792,265.42/651,806.10
  6. Step 6: Final answer
    x = 820,245.15

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Double scale
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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.