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Finding the Fourth Proportional to 652,869.60, 977,435.60 and 401,861.60

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Solution

The fourth proportional to 652,869.60, 977,435.60 and 401,861.60 is: 601,642.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,869.60 : 977,435.60 = 401,861.60 : x
  2. Step 2: Convert to fraction form
    652,869.60/977,435.60 = 401,861.60/x
  3. Step 3: Cross multiply
    652,869.60x = 977,435.60 × 401,861.60
  4. Step 4: Simplify right side
    652,869.60x = 392,793,834,112.96
  5. Step 5: Solve for x
    x = 392,793,834,112.96/652,869.60
  6. Step 6: Final answer
    x = 601,642.10

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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.