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Finding the Fourth Proportional to 816,136,909.60, 1,224,205,364.40 and 816,136,909.60

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Solution

The fourth proportional to 816,136,909.60, 1,224,205,364.40 and 816,136,909.60 is: 1,224,205,364.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,136,909.60 : 1,224,205,364.40 = 816,136,909.60 : x
  2. Step 2: Convert to fraction form
    816,136,909.60/1,224,205,364.40 = 816,136,909.60/x
  3. Step 3: Cross multiply
    816,136,909.60x = 1,224,205,364.40 × 816,136,909.60
  4. Step 4: Simplify right side
    816,136,909.60x = 999,119,182,817,158,016
  5. Step 5: Solve for x
    x = 999,119,182,817,158,016/816,136,909.60
  6. Step 6: Final answer
    x = 1,224,205,364.40

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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.