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Finding the Fourth Proportional to 534,459,537.40, 746,630,921 and 534,459,537.40

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Solution

The fourth proportional to 534,459,537.40, 746,630,921 and 534,459,537.40 is: 746,630,921

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,459,537.40 : 746,630,921 = 534,459,537.40 : x
  2. Step 2: Convert to fraction form
    534,459,537.40/746,630,921 = 534,459,537.40/x
  3. Step 3: Cross multiply
    534,459,537.40x = 746,630,921 × 534,459,537.40
  4. Step 4: Simplify right side
    534,459,537.40x = 399,044,016,646,195,904
  5. Step 5: Solve for x
    x = 399,044,016,646,195,904/534,459,537.40
  6. Step 6: Final answer
    x = 746,630,921

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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.