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Finding the Fourth Proportional to 346,510.53, 519,809.54 and 121,818.15

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Solution

The fourth proportional to 346,510.53, 519,809.54 and 121,818.15 is: 182,742.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,510.53 : 519,809.54 = 121,818.15 : x
  2. Step 2: Convert to fraction form
    346,510.53/519,809.54 = 121,818.15/x
  3. Step 3: Cross multiply
    346,510.53x = 519,809.54 × 121,818.15
  4. Step 4: Simplify right side
    346,510.53x = 63,322,235,906.06
  5. Step 5: Solve for x
    x = 63,322,235,906.06/346,510.53
  6. Step 6: Final answer
    x = 182,742.60

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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.