Home / 738,009.10-1,104,680.85-528,057.10

Finding the Fourth Proportional to 738,009.10, 1,104,680.85 and 528,057.10

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Solution

The fourth proportional to 738,009.10, 1,104,680.85 and 528,057.10 is: 790,416.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,009.10 : 1,104,680.85 = 528,057.10 : x
  2. Step 2: Convert to fraction form
    738,009.10/1,104,680.85 = 528,057.10/x
  3. Step 3: Cross multiply
    738,009.10x = 1,104,680.85 × 528,057.10
  4. Step 4: Simplify right side
    738,009.10x = 583,334,566,076.54
  5. Step 5: Solve for x
    x = 583,334,566,076.54/738,009.10
  6. Step 6: Final answer
    x = 790,416.49

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Half scale
Find fourth proportional to 1,476,018.20, 2,209,361.70 and 1,056,114.20
Double scale
Find fourth proportional to 738,010.10, 1,104,682.35 and 528,058.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.