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Finding the Fourth Proportional to 697,966.71, 962,948.73 and 456,390.69

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Solution

The fourth proportional to 697,966.71, 962,948.73 and 456,390.69 is: 629,658.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,966.71 : 962,948.73 = 456,390.69 : x
  2. Step 2: Convert to fraction form
    697,966.71/962,948.73 = 456,390.69/x
  3. Step 3: Cross multiply
    697,966.71x = 962,948.73 × 456,390.69
  4. Step 4: Simplify right side
    697,966.71x = 439,480,835,319.32
  5. Step 5: Solve for x
    x = 439,480,835,319.32/697,966.71
  6. Step 6: Final answer
    x = 629,658.73

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Double scale
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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.