Home / 572,541.80-858,812.70-509,556.20

Finding the Fourth Proportional to 572,541.80, 858,812.70 and 509,556.20

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Solution

The fourth proportional to 572,541.80, 858,812.70 and 509,556.20 is: 764,334.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,541.80 : 858,812.70 = 509,556.20 : x
  2. Step 2: Convert to fraction form
    572,541.80/858,812.70 = 509,556.20/x
  3. Step 3: Cross multiply
    572,541.80x = 858,812.70 × 509,556.20
  4. Step 4: Simplify right side
    572,541.80x = 437,613,335,923.74
  5. Step 5: Solve for x
    x = 437,613,335,923.74/572,541.80
  6. Step 6: Final answer
    x = 764,334.30

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Half scale
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Double scale
Find fourth proportional to 572,542.80, 858,814.20 and 509,557.20
Similar ratio
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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.