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Finding the Fourth Proportional to 944,784,842.40, 1,319,637,679.20 and 944,784,842.40

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Solution

The fourth proportional to 944,784,842.40, 1,319,637,679.20 and 944,784,842.40 is: 1,319,637,679.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    944,784,842.40 : 1,319,637,679.20 = 944,784,842.40 : x
  2. Step 2: Convert to fraction form
    944,784,842.40/1,319,637,679.20 = 944,784,842.40/x
  3. Step 3: Cross multiply
    944,784,842.40x = 1,319,637,679.20 × 944,784,842.40
  4. Step 4: Simplify right side
    944,784,842.40x = 1,246,773,676,768,073,728
  5. Step 5: Solve for x
    x = 1,246,773,676,768,073,728/944,784,842.40
  6. Step 6: Final answer
    x = 1,319,637,679.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.