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Finding the Fourth Proportional to 423,549,729.80, 591,760,298.20 and 423,549,729.80

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Solution

The fourth proportional to 423,549,729.80, 591,760,298.20 and 423,549,729.80 is: 591,760,298.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,549,729.80 : 591,760,298.20 = 423,549,729.80 : x
  2. Step 2: Convert to fraction form
    423,549,729.80/591,760,298.20 = 423,549,729.80/x
  3. Step 3: Cross multiply
    423,549,729.80x = 591,760,298.20 × 423,549,729.80
  4. Step 4: Simplify right side
    423,549,729.80x = 250,639,914,408,977,440
  5. Step 5: Solve for x
    x = 250,639,914,408,977,440/423,549,729.80
  6. Step 6: Final answer
    x = 591,760,298.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.