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Finding the Fourth Proportional to 976,671,820.60, 1,465,007,730.90 and 901,844,927.80

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Solution

The fourth proportional to 976,671,820.60, 1,465,007,730.90 and 901,844,927.80 is: 1,352,767,391.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,671,820.60 : 1,465,007,730.90 = 901,844,927.80 : x
  2. Step 2: Convert to fraction form
    976,671,820.60/1,465,007,730.90 = 901,844,927.80/x
  3. Step 3: Cross multiply
    976,671,820.60x = 1,465,007,730.90 × 901,844,927.80
  4. Step 4: Simplify right side
    976,671,820.60x = 1,321,209,791,299,952,384
  5. Step 5: Solve for x
    x = 1,321,209,791,299,952,384/976,671,820.60
  6. Step 6: Final answer
    x = 1,352,767,391.70

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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.