Home / 661,984.10-991,955.55-492,710.30

Finding the Fourth Proportional to 661,984.10, 991,955.55 and 492,710.30

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Solution

The fourth proportional to 661,984.10, 991,955.55 and 492,710.30 is: 738,305.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,984.10 : 991,955.55 = 492,710.30 : x
  2. Step 2: Convert to fraction form
    661,984.10/991,955.55 = 492,710.30/x
  3. Step 3: Cross multiply
    661,984.10x = 991,955.55 × 492,710.30
  4. Step 4: Simplify right side
    661,984.10x = 488,746,716,627.17
  5. Step 5: Solve for x
    x = 488,746,716,627.17/661,984.10
  6. Step 6: Final answer
    x = 738,305.82

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Double scale
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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.