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Finding the Fourth Proportional to 553,945.74, 831,030.40 and 174,925.68

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Solution

The fourth proportional to 553,945.74, 831,030.40 and 174,925.68 is: 262,423.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,945.74 : 831,030.40 = 174,925.68 : x
  2. Step 2: Convert to fraction form
    553,945.74/831,030.40 = 174,925.68/x
  3. Step 3: Cross multiply
    553,945.74x = 831,030.40 × 174,925.68
  4. Step 4: Simplify right side
    553,945.74x = 145,368,557,820.67
  5. Step 5: Solve for x
    x = 145,368,557,820.67/553,945.74
  6. Step 6: Final answer
    x = 262,423.82

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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.