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Finding the Fourth Proportional to 583,613.02, 805,385.73 and 315,341.02

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Solution

The fourth proportional to 583,613.02, 805,385.73 and 315,341.02 is: 435,170.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,613.02 : 805,385.73 = 315,341.02 : x
  2. Step 2: Convert to fraction form
    583,613.02/805,385.73 = 315,341.02/x
  3. Step 3: Cross multiply
    583,613.02x = 805,385.73 × 315,341.02
  4. Step 4: Simplify right side
    583,613.02x = 253,971,157,591.65
  5. Step 5: Solve for x
    x = 253,971,157,591.65/583,613.02
  6. Step 6: Final answer
    x = 435,170.48

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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.