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Finding the Fourth Proportional to 583,454.86, 805,317.52 and 380,012.74

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Solution

The fourth proportional to 583,454.86, 805,317.52 and 380,012.74 is: 524,515.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,454.86 : 805,317.52 = 380,012.74 : x
  2. Step 2: Convert to fraction form
    583,454.86/805,317.52 = 380,012.74/x
  3. Step 3: Cross multiply
    583,454.86x = 805,317.52 × 380,012.74
  4. Step 4: Simplify right side
    583,454.86x = 306,030,917,345.21
  5. Step 5: Solve for x
    x = 306,030,917,345.21/583,454.86
  6. Step 6: Final answer
    x = 524,515.16

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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.