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Finding the Fourth Proportional to 571,054.80, 856,582.20 and 360,008.40

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Solution

The fourth proportional to 571,054.80, 856,582.20 and 360,008.40 is: 540,012.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,054.80 : 856,582.20 = 360,008.40 : x
  2. Step 2: Convert to fraction form
    571,054.80/856,582.20 = 360,008.40/x
  3. Step 3: Cross multiply
    571,054.80x = 856,582.20 × 360,008.40
  4. Step 4: Simplify right side
    571,054.80x = 308,376,787,290.48
  5. Step 5: Solve for x
    x = 308,376,787,290.48/571,054.80
  6. Step 6: Final answer
    x = 540,012.60

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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.