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Finding the Fourth Proportional to 697,417.71, 962,188.92 and 455,839.74

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Solution

The fourth proportional to 697,417.71, 962,188.92 and 455,839.74 is: 628,897.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,417.71 : 962,188.92 = 455,839.74 : x
  2. Step 2: Convert to fraction form
    697,417.71/962,188.92 = 455,839.74/x
  3. Step 3: Cross multiply
    697,417.71x = 962,188.92 × 455,839.74
  4. Step 4: Simplify right side
    697,417.71x = 438,603,947,123.68
  5. Step 5: Solve for x
    x = 438,603,947,123.68/697,417.71
  6. Step 6: Final answer
    x = 628,897.06

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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.