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Finding the Fourth Proportional to 651,640,218.30, 977,460,327.45 and 651,640,218.30

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Solution

The fourth proportional to 651,640,218.30, 977,460,327.45 and 651,640,218.30 is: 977,460,327.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,640,218.30 : 977,460,327.45 = 651,640,218.30 : x
  2. Step 2: Convert to fraction form
    651,640,218.30/977,460,327.45 = 651,640,218.30/x
  3. Step 3: Cross multiply
    651,640,218.30x = 977,460,327.45 × 651,640,218.30
  4. Step 4: Simplify right side
    651,640,218.30x = 636,952,461,159,107,456
  5. Step 5: Solve for x
    x = 636,952,461,159,107,456/651,640,218.30
  6. Step 6: Final answer
    x = 977,460,327.45

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Double scale
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1.5x scale

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.