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Finding the Fourth Proportional to 391,142,152,168.40, 586,713,228,252.60 and 391,142,152,168.40

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Solution

The fourth proportional to 391,142,152,168.40, 586,713,228,252.60 and 391,142,152,168.40 is: 586,713,228,252.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,142,152,168.40 : 586,713,228,252.60 = 391,142,152,168.40 : x
  2. Step 2: Convert to fraction form
    391,142,152,168.40/586,713,228,252.60 = 391,142,152,168.40/x
  3. Step 3: Cross multiply
    391,142,152,168.40x = 586,713,228,252.60 × 391,142,152,168.40
  4. Step 4: Simplify right side
    391,142,152,168.40x = 229,488,274,804,391,670,710,272
  5. Step 5: Solve for x
    x = 229,488,274,804,391,670,710,272/391,142,152,168.40
  6. Step 6: Final answer
    x = 586,713,228,252.60

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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.