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Finding the Fourth Proportional to 623,571,205.70, 874,432,960.30 and 623,571,205.70

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Solution

The fourth proportional to 623,571,205.70, 874,432,960.30 and 623,571,205.70 is: 874,432,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,571,205.70 : 874,432,960.30 = 623,571,205.70 : x
  2. Step 2: Convert to fraction form
    623,571,205.70/874,432,960.30 = 623,571,205.70/x
  3. Step 3: Cross multiply
    623,571,205.70x = 874,432,960.30 × 623,571,205.70
  4. Step 4: Simplify right side
    623,571,205.70x = 545,271,215,358,091,264
  5. Step 5: Solve for x
    x = 545,271,215,358,091,264/623,571,205.70
  6. Step 6: Final answer
    x = 874,432,960.30

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.