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Finding the Fourth Proportional to 583,595.56, 805,423.79 and 342,081.05

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Solution

The fourth proportional to 583,595.56, 805,423.79 and 342,081.05 is: 472,108.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,595.56 : 805,423.79 = 342,081.05 : x
  2. Step 2: Convert to fraction form
    583,595.56/805,423.79 = 342,081.05/x
  3. Step 3: Cross multiply
    583,595.56x = 805,423.79 × 342,081.05
  4. Step 4: Simplify right side
    583,595.56x = 275,520,215,778.18
  5. Step 5: Solve for x
    x = 275,520,215,778.18/583,595.56
  6. Step 6: Final answer
    x = 472,108.14

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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.