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Finding the Fourth Proportional to 652,157.40, 977,069.70 and 402,547.80

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Solution

The fourth proportional to 652,157.40, 977,069.70 and 402,547.80 is: 603,101.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,157.40 : 977,069.70 = 402,547.80 : x
  2. Step 2: Convert to fraction form
    652,157.40/977,069.70 = 402,547.80/x
  3. Step 3: Cross multiply
    652,157.40x = 977,069.70 × 402,547.80
  4. Step 4: Simplify right side
    652,157.40x = 393,317,258,181.66
  5. Step 5: Solve for x
    x = 393,317,258,181.66/652,157.40
  6. Step 6: Final answer
    x = 603,101.73

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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.