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Finding the Fourth Proportional to 292,088.70, 438,327.45 and 165,728.70

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Solution

The fourth proportional to 292,088.70, 438,327.45 and 165,728.70 is: 248,703.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,088.70 : 438,327.45 = 165,728.70 : x
  2. Step 2: Convert to fraction form
    292,088.70/438,327.45 = 165,728.70/x
  3. Step 3: Cross multiply
    292,088.70x = 438,327.45 × 165,728.70
  4. Step 4: Simplify right side
    292,088.70x = 72,643,438,462.82
  5. Step 5: Solve for x
    x = 72,643,438,462.82/292,088.70
  6. Step 6: Final answer
    x = 248,703.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.