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Finding the Fourth Proportional to 554,564, 831,846.14 and 155,263.60

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Solution

The fourth proportional to 554,564, 831,846.14 and 155,263.60 is: 232,895.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,564 : 831,846.14 = 155,263.60 : x
  2. Step 2: Convert to fraction form
    554,564/831,846.14 = 155,263.60/x
  3. Step 3: Cross multiply
    554,564x = 831,846.14 × 155,263.60
  4. Step 4: Simplify right side
    554,564x = 129,155,426,342.50
  5. Step 5: Solve for x
    x = 129,155,426,342.50/554,564
  6. Step 6: Final answer
    x = 232,895.44

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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.