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Finding the Fourth Proportional to 554,869.50, 832,353.42 and 155,515.08

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Solution

The fourth proportional to 554,869.50, 832,353.42 and 155,515.08 is: 233,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,869.50 : 832,353.42 = 155,515.08 : x
  2. Step 2: Convert to fraction form
    554,869.50/832,353.42 = 155,515.08/x
  3. Step 3: Cross multiply
    554,869.50x = 832,353.42 × 155,515.08
  4. Step 4: Simplify right side
    554,869.50x = 129,443,508,699.57
  5. Step 5: Solve for x
    x = 129,443,508,699.57/554,869.50
  6. Step 6: Final answer
    x = 233,286.40

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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.