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Finding the Fourth Proportional to 531,540,459.10, 797,310,688.65 and 531,540,459.10

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Solution

The fourth proportional to 531,540,459.10, 797,310,688.65 and 531,540,459.10 is: 797,310,688.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,540,459.10 : 797,310,688.65 = 531,540,459.10 : x
  2. Step 2: Convert to fraction form
    531,540,459.10/797,310,688.65 = 531,540,459.10/x
  3. Step 3: Cross multiply
    531,540,459.10x = 797,310,688.65 × 531,540,459.10
  4. Step 4: Simplify right side
    531,540,459.10x = 423,802,889,490,358,144
  5. Step 5: Solve for x
    x = 423,802,889,490,358,144/531,540,459.10
  6. Step 6: Final answer
    x = 797,310,688.65

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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.