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Finding the Fourth Proportional to 423,549,728.80, 591,760,296.80 and 423,549,728.80

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Solution

The fourth proportional to 423,549,728.80, 591,760,296.80 and 423,549,728.80 is: 591,760,296.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,549,728.80 : 591,760,296.80 = 423,549,728.80 : x
  2. Step 2: Convert to fraction form
    423,549,728.80/591,760,296.80 = 423,549,728.80/x
  3. Step 3: Cross multiply
    423,549,728.80x = 591,760,296.80 × 423,549,728.80
  4. Step 4: Simplify right side
    423,549,728.80x = 250,639,913,224,247,488
  5. Step 5: Solve for x
    x = 250,639,913,224,247,488/423,549,728.80
  6. Step 6: Final answer
    x = 591,760,296.80

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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.