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Finding the Fourth Proportional to 519,941.40, 729,492.60 and 519,941.40

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Solution

The fourth proportional to 519,941.40, 729,492.60 and 519,941.40 is: 729,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,941.40 : 729,492.60 = 519,941.40 : x
  2. Step 2: Convert to fraction form
    519,941.40/729,492.60 = 519,941.40/x
  3. Step 3: Cross multiply
    519,941.40x = 729,492.60 × 519,941.40
  4. Step 4: Simplify right side
    519,941.40x = 379,293,403,733.64
  5. Step 5: Solve for x
    x = 379,293,403,733.64/519,941.40
  6. Step 6: Final answer
    x = 729,492.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.