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Finding the Fourth Proportional to 944,784,811.40, 1,319,637,635.80 and 944,784,811.40

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Solution

The fourth proportional to 944,784,811.40, 1,319,637,635.80 and 944,784,811.40 is: 1,319,637,635.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    944,784,811.40 : 1,319,637,635.80 = 944,784,811.40 : x
  2. Step 2: Convert to fraction form
    944,784,811.40/1,319,637,635.80 = 944,784,811.40/x
  3. Step 3: Cross multiply
    944,784,811.40x = 1,319,637,635.80 × 944,784,811.40
  4. Step 4: Simplify right side
    944,784,811.40x = 1,246,773,594,855,644,928
  5. Step 5: Solve for x
    x = 1,246,773,594,855,644,928/944,784,811.40
  6. Step 6: Final answer
    x = 1,319,637,635.80

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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.