Home / 920,423.60-1,270,339.44-593,644.76

Finding the Fourth Proportional to 920,423.60, 1,270,339.44 and 593,644.76

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Solution

The fourth proportional to 920,423.60, 1,270,339.44 and 593,644.76 is: 819,329.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,423.60 : 1,270,339.44 = 593,644.76 : x
  2. Step 2: Convert to fraction form
    920,423.60/1,270,339.44 = 593,644.76/x
  3. Step 3: Cross multiply
    920,423.60x = 1,270,339.44 × 593,644.76
  4. Step 4: Simplify right side
    920,423.60x = 754,130,351,977.33
  5. Step 5: Solve for x
    x = 754,130,351,977.33/920,423.60
  6. Step 6: Final answer
    x = 819,329.66

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Double scale
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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.