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Finding the Fourth Proportional to 869,185,319.10, 1,303,777,978.65 and 593,686,304.70

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Solution

The fourth proportional to 869,185,319.10, 1,303,777,978.65 and 593,686,304.70 is: 890,529,457.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,185,319.10 : 1,303,777,978.65 = 593,686,304.70 : x
  2. Step 2: Convert to fraction form
    869,185,319.10/1,303,777,978.65 = 593,686,304.70/x
  3. Step 3: Cross multiply
    869,185,319.10x = 1,303,777,978.65 × 593,686,304.70
  4. Step 4: Simplify right side
    869,185,319.10x = 774,035,130,293,954,176
  5. Step 5: Solve for x
    x = 774,035,130,293,954,176/869,185,319.10
  6. Step 6: Final answer
    x = 890,529,457.05

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Double scale
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Similar ratio
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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.