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Finding the Fourth Proportional to 934,560.40, 1,402,186.20 and 900,000.40

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Solution

The fourth proportional to 934,560.40, 1,402,186.20 and 900,000.40 is: 1,350,333.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,560.40 : 1,402,186.20 = 900,000.40 : x
  2. Step 2: Convert to fraction form
    934,560.40/1,402,186.20 = 900,000.40/x
  3. Step 3: Cross multiply
    934,560.40x = 1,402,186.20 × 900,000.40
  4. Step 4: Simplify right side
    934,560.40x = 1,261,968,140,874.48
  5. Step 5: Solve for x
    x = 1,261,968,140,874.48/934,560.40
  6. Step 6: Final answer
    x = 1,350,333.42

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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.