Home / 920,863.70-1,270,623.26-512,955.39

Finding the Fourth Proportional to 920,863.70, 1,270,623.26 and 512,955.39

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Solution

The fourth proportional to 920,863.70, 1,270,623.26 and 512,955.39 is: 707,784.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,863.70 : 1,270,623.26 = 512,955.39 : x
  2. Step 2: Convert to fraction form
    920,863.70/1,270,623.26 = 512,955.39/x
  3. Step 3: Cross multiply
    920,863.70x = 1,270,623.26 × 512,955.39
  4. Step 4: Simplify right side
    920,863.70x = 651,773,051,158.76
  5. Step 5: Solve for x
    x = 651,773,051,158.76/920,863.70
  6. Step 6: Final answer
    x = 707,784.50

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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.