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Finding the Fourth Proportional to 291,662.57, 402,494.49 and 157,526.57

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Solution

The fourth proportional to 291,662.57, 402,494.49 and 157,526.57 is: 217,386.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,662.57 : 402,494.49 = 157,526.57 : x
  2. Step 2: Convert to fraction form
    291,662.57/402,494.49 = 157,526.57/x
  3. Step 3: Cross multiply
    291,662.57x = 402,494.49 × 157,526.57
  4. Step 4: Simplify right side
    291,662.57x = 63,403,574,441.13
  5. Step 5: Solve for x
    x = 63,403,574,441.13/291,662.57
  6. Step 6: Final answer
    x = 217,386.74

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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.