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Finding the Fourth Proportional to 709,425,102.60, 979,467,302.52 and 634,956,702.84

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Solution

The fourth proportional to 709,425,102.60, 979,467,302.52 and 634,956,702.84 is: 876,652,555.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,425,102.60 : 979,467,302.52 = 634,956,702.84 : x
  2. Step 2: Convert to fraction form
    709,425,102.60/979,467,302.52 = 634,956,702.84/x
  3. Step 3: Cross multiply
    709,425,102.60x = 979,467,302.52 × 634,956,702.84
  4. Step 4: Simplify right side
    709,425,102.60x = 621,919,328,947,688,064
  5. Step 5: Solve for x
    x = 621,919,328,947,688,064/709,425,102.60
  6. Step 6: Final answer
    x = 876,652,555.24

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.