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Finding the Fourth Proportional to 688,634,673.60, 1,032,952,010.40 and 688,634,673.60

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Solution

The fourth proportional to 688,634,673.60, 1,032,952,010.40 and 688,634,673.60 is: 1,032,952,010.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,634,673.60 : 1,032,952,010.40 = 688,634,673.60 : x
  2. Step 2: Convert to fraction form
    688,634,673.60/1,032,952,010.40 = 688,634,673.60/x
  3. Step 3: Cross multiply
    688,634,673.60x = 1,032,952,010.40 × 688,634,673.60
  4. Step 4: Simplify right side
    688,634,673.60x = 711,326,570,526,267,776
  5. Step 5: Solve for x
    x = 711,326,570,526,267,776/688,634,673.60
  6. Step 6: Final answer
    x = 1,032,952,010.40

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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.