Home / 685,332.58-945,789.88-383,526.58

Finding the Fourth Proportional to 685,332.58, 945,789.88 and 383,526.58

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Solution

The fourth proportional to 685,332.58, 945,789.88 and 383,526.58 is: 529,283.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,332.58 : 945,789.88 = 383,526.58 : x
  2. Step 2: Convert to fraction form
    685,332.58/945,789.88 = 383,526.58/x
  3. Step 3: Cross multiply
    685,332.58x = 945,789.88 × 383,526.58
  4. Step 4: Simplify right side
    685,332.58x = 362,735,558,075.01
  5. Step 5: Solve for x
    x = 362,735,558,075.01/685,332.58
  6. Step 6: Final answer
    x = 529,283.98

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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.