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Finding the Fourth Proportional to 521,230.32, 719,237.16 and 291,800.16

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Solution

The fourth proportional to 521,230.32, 719,237.16 and 291,800.16 is: 402,650.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,230.32 : 719,237.16 = 291,800.16 : x
  2. Step 2: Convert to fraction form
    521,230.32/719,237.16 = 291,800.16/x
  3. Step 3: Cross multiply
    521,230.32x = 719,237.16 × 291,800.16
  4. Step 4: Simplify right side
    521,230.32x = 209,873,518,365.95
  5. Step 5: Solve for x
    x = 209,873,518,365.95/521,230.32
  6. Step 6: Final answer
    x = 402,650.25

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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.