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Finding the Fourth Proportional to 583,878.40, 876,163.20 and 384,774.40

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Solution

The fourth proportional to 583,878.40, 876,163.20 and 384,774.40 is: 577,389.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,878.40 : 876,163.20 = 384,774.40 : x
  2. Step 2: Convert to fraction form
    583,878.40/876,163.20 = 384,774.40/x
  3. Step 3: Cross multiply
    583,878.40x = 876,163.20 × 384,774.40
  4. Step 4: Simplify right side
    583,878.40x = 337,125,169,582.08
  5. Step 5: Solve for x
    x = 337,125,169,582.08/583,878.40
  6. Step 6: Final answer
    x = 577,389.35

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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.