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Finding the Fourth Proportional to 583,878.13, 805,445.88 and 507,225.13

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Solution

The fourth proportional to 583,878.13, 805,445.88 and 507,225.13 is: 699,704.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,878.13 : 805,445.88 = 507,225.13 : x
  2. Step 2: Convert to fraction form
    583,878.13/805,445.88 = 507,225.13/x
  3. Step 3: Cross multiply
    583,878.13x = 805,445.88 × 507,225.13
  4. Step 4: Simplify right side
    583,878.13x = 408,542,391,190.96
  5. Step 5: Solve for x
    x = 408,542,391,190.96/583,878.13
  6. Step 6: Final answer
    x = 699,704.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.