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Finding the Fourth Proportional to 713,139,270.60, 1,069,708,905.90 and 651,917,267.40

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Solution

The fourth proportional to 713,139,270.60, 1,069,708,905.90 and 651,917,267.40 is: 977,875,901.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,139,270.60 : 1,069,708,905.90 = 651,917,267.40 : x
  2. Step 2: Convert to fraction form
    713,139,270.60/1,069,708,905.90 = 651,917,267.40/x
  3. Step 3: Cross multiply
    713,139,270.60x = 1,069,708,905.90 × 651,917,267.40
  4. Step 4: Simplify right side
    713,139,270.60x = 697,361,706,847,771,648
  5. Step 5: Solve for x
    x = 697,361,706,847,771,648/713,139,270.60
  6. Step 6: Final answer
    x = 977,875,901.10

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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.