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Finding the Fourth Proportional to 445,973.70, 615,445.32 and 242,024.57

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Solution

The fourth proportional to 445,973.70, 615,445.32 and 242,024.57 is: 333,994.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,973.70 : 615,445.32 = 242,024.57 : x
  2. Step 2: Convert to fraction form
    445,973.70/615,445.32 = 242,024.57/x
  3. Step 3: Cross multiply
    445,973.70x = 615,445.32 × 242,024.57
  4. Step 4: Simplify right side
    445,973.70x = 148,952,888,931.51
  5. Step 5: Solve for x
    x = 148,952,888,931.51/445,973.70
  6. Step 6: Final answer
    x = 333,994.78

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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.