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Finding the Fourth Proportional to 934,191.84, 1,284,423 and 831,223.20

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Solution

The fourth proportional to 934,191.84, 1,284,423 and 831,223.20 is: 1,142,851.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,191.84 : 1,284,423 = 831,223.20 : x
  2. Step 2: Convert to fraction form
    934,191.84/1,284,423 = 831,223.20/x
  3. Step 3: Cross multiply
    934,191.84x = 1,284,423 × 831,223.20
  4. Step 4: Simplify right side
    934,191.84x = 1,067,642,196,213.60
  5. Step 5: Solve for x
    x = 1,067,642,196,213.60/934,191.84
  6. Step 6: Final answer
    x = 1,142,851.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.