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Finding the Fourth Proportional to 554,730,568.54, 765,528,597.32 and 300,413,899.32

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Solution

The fourth proportional to 554,730,568.54, 765,528,597.32 and 300,413,899.32 is: 414,571,404.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,730,568.54 : 765,528,597.32 = 300,413,899.32 : x
  2. Step 2: Convert to fraction form
    554,730,568.54/765,528,597.32 = 300,413,899.32/x
  3. Step 3: Cross multiply
    554,730,568.54x = 765,528,597.32 × 300,413,899.32
  4. Step 4: Simplify right side
    554,730,568.54x = 229,975,430,961,871,328
  5. Step 5: Solve for x
    x = 229,975,430,961,871,328/554,730,568.54
  6. Step 6: Final answer
    x = 414,571,404.58

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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.