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Finding the Fourth Proportional to 423,087,785.60, 633,437,284.80 and 423,087,785.60

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Solution

The fourth proportional to 423,087,785.60, 633,437,284.80 and 423,087,785.60 is: 633,437,284.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,087,785.60 : 633,437,284.80 = 423,087,785.60 : x
  2. Step 2: Convert to fraction form
    423,087,785.60/633,437,284.80 = 423,087,785.60/x
  3. Step 3: Cross multiply
    423,087,785.60x = 633,437,284.80 × 423,087,785.60
  4. Step 4: Simplify right side
    423,087,785.60x = 267,999,578,142,508,544
  5. Step 5: Solve for x
    x = 267,999,578,142,508,544/423,087,785.60
  6. Step 6: Final answer
    x = 633,437,284.80

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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.