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Finding the Fourth Proportional to 651,830.40, 977,915.70 and 252,484.20

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Solution

The fourth proportional to 651,830.40, 977,915.70 and 252,484.20 is: 378,792.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,830.40 : 977,915.70 = 252,484.20 : x
  2. Step 2: Convert to fraction form
    651,830.40/977,915.70 = 252,484.20/x
  3. Step 3: Cross multiply
    651,830.40x = 977,915.70 × 252,484.20
  4. Step 4: Simplify right side
    651,830.40x = 246,908,263,181.94
  5. Step 5: Solve for x
    x = 246,908,263,181.94/651,830.40
  6. Step 6: Final answer
    x = 378,792.19

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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.