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Finding the Fourth Proportional to 539,440.01, 808,483.41 and 286,095.20

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Solution

The fourth proportional to 539,440.01, 808,483.41 and 286,095.20 is: 428,783.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,440.01 : 808,483.41 = 286,095.20 : x
  2. Step 2: Convert to fraction form
    539,440.01/808,483.41 = 286,095.20/x
  3. Step 3: Cross multiply
    539,440.01x = 808,483.41 × 286,095.20
  4. Step 4: Simplify right side
    539,440.01x = 231,303,220,144.19
  5. Step 5: Solve for x
    x = 231,303,220,144.19/539,440.01
  6. Step 6: Final answer
    x = 428,783.95

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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.