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Finding the Fourth Proportional to 623,852.40, 936,102.60 and 291,428.40

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Solution

The fourth proportional to 623,852.40, 936,102.60 and 291,428.40 is: 437,293.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,852.40 : 936,102.60 = 291,428.40 : x
  2. Step 2: Convert to fraction form
    623,852.40/936,102.60 = 291,428.40/x
  3. Step 3: Cross multiply
    623,852.40x = 936,102.60 × 291,428.40
  4. Step 4: Simplify right side
    623,852.40x = 272,806,882,953.84
  5. Step 5: Solve for x
    x = 272,806,882,953.84/623,852.40
  6. Step 6: Final answer
    x = 437,293.95

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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.