Home / 765,809.45-1,056,799.55-479,487.41

Finding the Fourth Proportional to 765,809.45, 1,056,799.55 and 479,487.41

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Solution

The fourth proportional to 765,809.45, 1,056,799.55 and 479,487.41 is: 661,681.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,809.45 : 1,056,799.55 = 479,487.41 : x
  2. Step 2: Convert to fraction form
    765,809.45/1,056,799.55 = 479,487.41/x
  3. Step 3: Cross multiply
    765,809.45x = 1,056,799.55 × 479,487.41
  4. Step 4: Simplify right side
    765,809.45x = 506,722,076,721.23
  5. Step 5: Solve for x
    x = 506,722,076,721.23/765,809.45
  6. Step 6: Final answer
    x = 661,681.67

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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.