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Finding the Fourth Proportional to 583,808.66, 805,655.58 and 315,536.66

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Solution

The fourth proportional to 583,808.66, 805,655.58 and 315,536.66 is: 435,440.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,808.66 : 805,655.58 = 315,536.66 : x
  2. Step 2: Convert to fraction form
    583,808.66/805,655.58 = 315,536.66/x
  3. Step 3: Cross multiply
    583,808.66x = 805,655.58 × 315,536.66
  4. Step 4: Simplify right side
    583,808.66x = 254,213,866,795.29
  5. Step 5: Solve for x
    x = 254,213,866,795.29/583,808.66
  6. Step 6: Final answer
    x = 435,440.39

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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.