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Finding the Fourth Proportional to 292,453.40, 403,586.98 and 158,317.40

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Solution

The fourth proportional to 292,453.40, 403,586.98 and 158,317.40 is: 218,478.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,453.40 : 403,586.98 = 158,317.40 : x
  2. Step 2: Convert to fraction form
    292,453.40/403,586.98 = 158,317.40/x
  3. Step 3: Cross multiply
    292,453.40x = 403,586.98 × 158,317.40
  4. Step 4: Simplify right side
    292,453.40x = 63,894,841,347.45
  5. Step 5: Solve for x
    x = 63,894,841,347.45/292,453.40
  6. Step 6: Final answer
    x = 218,478.71

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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.