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Finding the Fourth Proportional to 583,445.86, 805,305.09 and 380,003.74

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Solution

The fourth proportional to 583,445.86, 805,305.09 and 380,003.74 is: 524,502.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,445.86 : 805,305.09 = 380,003.74 : x
  2. Step 2: Convert to fraction form
    583,445.86/805,305.09 = 380,003.74/x
  3. Step 3: Cross multiply
    583,445.86x = 805,305.09 × 380,003.74
  4. Step 4: Simplify right side
    583,445.86x = 306,018,946,041.04
  5. Step 5: Solve for x
    x = 306,018,946,041.04/583,445.86
  6. Step 6: Final answer
    x = 524,502.73

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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.