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Finding the Fourth Proportional to 934,000.40, 1,401,000.60 and 615,135.80

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Solution

The fourth proportional to 934,000.40, 1,401,000.60 and 615,135.80 is: 922,703.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,000.40 : 1,401,000.60 = 615,135.80 : x
  2. Step 2: Convert to fraction form
    934,000.40/1,401,000.60 = 615,135.80/x
  3. Step 3: Cross multiply
    934,000.40x = 1,401,000.60 × 615,135.80
  4. Step 4: Simplify right side
    934,000.40x = 861,805,624,881.48
  5. Step 5: Solve for x
    x = 861,805,624,881.48/934,000.40
  6. Step 6: Final answer
    x = 922,703.70

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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.