Home / 781,525.53-1,078,563.18-437,395.95

Finding the Fourth Proportional to 781,525.53, 1,078,563.18 and 437,395.95

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Solution

The fourth proportional to 781,525.53, 1,078,563.18 and 437,395.95 is: 603,638.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,525.53 : 1,078,563.18 = 437,395.95 : x
  2. Step 2: Convert to fraction form
    781,525.53/1,078,563.18 = 437,395.95/x
  3. Step 3: Cross multiply
    781,525.53x = 1,078,563.18 × 437,395.95
  4. Step 4: Simplify right side
    781,525.53x = 471,759,166,751.12
  5. Step 5: Solve for x
    x = 471,759,166,751.12/781,525.53
  6. Step 6: Final answer
    x = 603,638.84

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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.