Home / 853,636.64-1,178,042.40-471,688.16

Finding the Fourth Proportional to 853,636.64, 1,178,042.40 and 471,688.16

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Solution

The fourth proportional to 853,636.64, 1,178,042.40 and 471,688.16 is: 650,942.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,636.64 : 1,178,042.40 = 471,688.16 : x
  2. Step 2: Convert to fraction form
    853,636.64/1,178,042.40 = 471,688.16/x
  3. Step 3: Cross multiply
    853,636.64x = 1,178,042.40 × 471,688.16
  4. Step 4: Simplify right side
    853,636.64x = 555,668,652,057.98
  5. Step 5: Solve for x
    x = 555,668,652,057.98/853,636.64
  6. Step 6: Final answer
    x = 650,942.83

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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.