Home / 923,880.70-1,386,339.45-391,311.10

Finding the Fourth Proportional to 923,880.70, 1,386,339.45 and 391,311.10

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Solution

The fourth proportional to 923,880.70, 1,386,339.45 and 391,311.10 is: 587,186.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,880.70 : 1,386,339.45 = 391,311.10 : x
  2. Step 2: Convert to fraction form
    923,880.70/1,386,339.45 = 391,311.10/x
  3. Step 3: Cross multiply
    923,880.70x = 1,386,339.45 × 391,311.10
  4. Step 4: Simplify right side
    923,880.70x = 542,490,015,152.90
  5. Step 5: Solve for x
    x = 542,490,015,152.90/923,880.70
  6. Step 6: Final answer
    x = 587,186.22

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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.