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Finding the Fourth Proportional to 531,438,530.40, 797,157,795.60 and 531,438,530.40

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Solution

The fourth proportional to 531,438,530.40, 797,157,795.60 and 531,438,530.40 is: 797,157,795.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,438,530.40 : 797,157,795.60 = 531,438,530.40 : x
  2. Step 2: Convert to fraction form
    531,438,530.40/797,157,795.60 = 531,438,530.40/x
  3. Step 3: Cross multiply
    531,438,530.40x = 797,157,795.60 × 531,438,530.40
  4. Step 4: Simplify right side
    531,438,530.40x = 423,640,367,390,567,552
  5. Step 5: Solve for x
    x = 423,640,367,390,567,552/531,438,530.40
  6. Step 6: Final answer
    x = 797,157,795.60

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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.