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Finding the Fourth Proportional to 615,256.20, 922,446.90 and 236,030.40

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Solution

The fourth proportional to 615,256.20, 922,446.90 and 236,030.40 is: 353,877.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,256.20 : 922,446.90 = 236,030.40 : x
  2. Step 2: Convert to fraction form
    615,256.20/922,446.90 = 236,030.40/x
  3. Step 3: Cross multiply
    615,256.20x = 922,446.90 × 236,030.40
  4. Step 4: Simplify right side
    615,256.20x = 217,725,510,785.76
  5. Step 5: Solve for x
    x = 217,725,510,785.76/615,256.20
  6. Step 6: Final answer
    x = 353,877.80

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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.