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Finding the Fourth Proportional to 575,250.40, 861,320.40 and 450,834.40

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Solution

The fourth proportional to 575,250.40, 861,320.40 and 450,834.40 is: 675,032.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,250.40 : 861,320.40 = 450,834.40 : x
  2. Step 2: Convert to fraction form
    575,250.40/861,320.40 = 450,834.40/x
  3. Step 3: Cross multiply
    575,250.40x = 861,320.40 × 450,834.40
  4. Step 4: Simplify right side
    575,250.40x = 388,312,865,741.76
  5. Step 5: Solve for x
    x = 388,312,865,741.76/575,250.40
  6. Step 6: Final answer
    x = 675,032.76

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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.