Home / 856,539.90-1,286,663.67-556,866.18

Finding the Fourth Proportional to 856,539.90, 1,286,663.67 and 556,866.18

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Solution

The fourth proportional to 856,539.90, 1,286,663.67 and 556,866.18 is: 836,504.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,539.90 : 1,286,663.67 = 556,866.18 : x
  2. Step 2: Convert to fraction form
    856,539.90/1,286,663.67 = 556,866.18/x
  3. Step 3: Cross multiply
    856,539.90x = 1,286,663.67 × 556,866.18
  4. Step 4: Simplify right side
    856,539.90x = 716,499,482,857.68
  5. Step 5: Solve for x
    x = 716,499,482,857.68/856,539.90
  6. Step 6: Final answer
    x = 836,504.50

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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.