Home / 822,359.78-1,134,880.10-459,784.57

Finding the Fourth Proportional to 822,359.78, 1,134,880.10 and 459,784.57

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Solution

The fourth proportional to 822,359.78, 1,134,880.10 and 459,784.57 is: 634,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,359.78 : 1,134,880.10 = 459,784.57 : x
  2. Step 2: Convert to fraction form
    822,359.78/1,134,880.10 = 459,784.57/x
  3. Step 3: Cross multiply
    822,359.78x = 1,134,880.10 × 459,784.57
  4. Step 4: Simplify right side
    822,359.78x = 521,800,358,780.06
  5. Step 5: Solve for x
    x = 521,800,358,780.06/822,359.78
  6. Step 6: Final answer
    x = 634,515.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.