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Finding the Fourth Proportional to 748,849,337.20, 1,121,258,466.60 and 748,849,337.20

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Solution

The fourth proportional to 748,849,337.20, 1,121,258,466.60 and 748,849,337.20 is: 1,121,258,466.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,849,337.20 : 1,121,258,466.60 = 748,849,337.20 : x
  2. Step 2: Convert to fraction form
    748,849,337.20/1,121,258,466.60 = 748,849,337.20/x
  3. Step 3: Cross multiply
    748,849,337.20x = 1,121,258,466.60 × 748,849,337.20
  4. Step 4: Simplify right side
    748,849,337.20x = 839,653,659,543,298,304
  5. Step 5: Solve for x
    x = 839,653,659,543,298,304/748,849,337.20
  6. Step 6: Final answer
    x = 1,121,258,466.60

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Double scale
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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.