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Finding the Fourth Proportional to 1,072,078,125.40, 1,497,848,275.40 and 1,072,078,125.40

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Solution

The fourth proportional to 1,072,078,125.40, 1,497,848,275.40 and 1,072,078,125.40 is: 1,497,848,275.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,078,125.40 : 1,497,848,275.40 = 1,072,078,125.40 : x
  2. Step 2: Convert to fraction form
    1,072,078,125.40/1,497,848,275.40 = 1,072,078,125.40/x
  3. Step 3: Cross multiply
    1,072,078,125.40x = 1,497,848,275.40 × 1,072,078,125.40
  4. Step 4: Simplify right side
    1,072,078,125.40x = 1,605,810,371,224,454,912
  5. Step 5: Solve for x
    x = 1,605,810,371,224,454,912/1,072,078,125.40
  6. Step 6: Final answer
    x = 1,497,848,275.40

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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.