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Finding the Fourth Proportional to 652,124,748.20, 978,187,122.30 and 652,124,748.20

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Solution

The fourth proportional to 652,124,748.20, 978,187,122.30 and 652,124,748.20 is: 978,187,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,124,748.20 : 978,187,122.30 = 652,124,748.20 : x
  2. Step 2: Convert to fraction form
    652,124,748.20/978,187,122.30 = 652,124,748.20/x
  3. Step 3: Cross multiply
    652,124,748.20x = 978,187,122.30 × 652,124,748.20
  4. Step 4: Simplify right side
    652,124,748.20x = 637,900,030,822,370,176
  5. Step 5: Solve for x
    x = 637,900,030,822,370,176/652,124,748.20
  6. Step 6: Final answer
    x = 978,187,122.30

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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.