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Finding the Fourth Proportional to 575,046.40, 862,569.60 and 260,118.40

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Solution

The fourth proportional to 575,046.40, 862,569.60 and 260,118.40 is: 390,177.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,046.40 : 862,569.60 = 260,118.40 : x
  2. Step 2: Convert to fraction form
    575,046.40/862,569.60 = 260,118.40/x
  3. Step 3: Cross multiply
    575,046.40x = 862,569.60 × 260,118.40
  4. Step 4: Simplify right side
    575,046.40x = 224,370,224,240.64
  5. Step 5: Solve for x
    x = 224,370,224,240.64/575,046.40
  6. Step 6: Final answer
    x = 390,177.60

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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.