Home / 879,330.53-1,213,245.34-506,701.78

Finding the Fourth Proportional to 879,330.53, 1,213,245.34 and 506,701.78

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Solution

The fourth proportional to 879,330.53, 1,213,245.34 and 506,701.78 is: 699,115.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,330.53 : 1,213,245.34 = 506,701.78 : x
  2. Step 2: Convert to fraction form
    879,330.53/1,213,245.34 = 506,701.78/x
  3. Step 3: Cross multiply
    879,330.53x = 1,213,245.34 × 506,701.78
  4. Step 4: Simplify right side
    879,330.53x = 614,753,569,054.84
  5. Step 5: Solve for x
    x = 614,753,569,054.84/879,330.53
  6. Step 6: Final answer
    x = 699,115.46

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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.