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Finding the Fourth Proportional to 575,452.40, 861,623.40 and 451,036.40

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Solution

The fourth proportional to 575,452.40, 861,623.40 and 451,036.40 is: 675,335.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,452.40 : 861,623.40 = 451,036.40 : x
  2. Step 2: Convert to fraction form
    575,452.40/861,623.40 = 451,036.40/x
  3. Step 3: Cross multiply
    575,452.40x = 861,623.40 × 451,036.40
  4. Step 4: Simplify right side
    575,452.40x = 388,623,516,491.76
  5. Step 5: Solve for x
    x = 388,623,516,491.76/575,452.40
  6. Step 6: Final answer
    x = 675,335.64

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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.