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Finding the Fourth Proportional to 697,317,799.59, 962,366,534.74 and 520,799,339.29

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Solution

The fourth proportional to 697,317,799.59, 962,366,534.74 and 520,799,339.29 is: 718,753,853.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,317,799.59 : 962,366,534.74 = 520,799,339.29 : x
  2. Step 2: Convert to fraction form
    697,317,799.59/962,366,534.74 = 520,799,339.29/x
  3. Step 3: Cross multiply
    697,317,799.59x = 962,366,534.74 × 520,799,339.29
  4. Step 4: Simplify right side
    697,317,799.59x = 501,199,855,447,398,848
  5. Step 5: Solve for x
    x = 501,199,855,447,398,848/697,317,799.59
  6. Step 6: Final answer
    x = 718,753,853.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.