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Finding the Fourth Proportional to 664,848,038.30, 932,317,803.70 and 664,848,038.30

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Solution

The fourth proportional to 664,848,038.30, 932,317,803.70 and 664,848,038.30 is: 932,317,803.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,848,038.30 : 932,317,803.70 = 664,848,038.30 : x
  2. Step 2: Convert to fraction form
    664,848,038.30/932,317,803.70 = 664,848,038.30/x
  3. Step 3: Cross multiply
    664,848,038.30x = 932,317,803.70 × 664,848,038.30
  4. Step 4: Simplify right side
    664,848,038.30x = 619,849,662,862,109,440
  5. Step 5: Solve for x
    x = 619,849,662,862,109,440/664,848,038.30
  6. Step 6: Final answer
    x = 932,317,803.70

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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.