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Finding the Fourth Proportional to 637,804,993.70, 956,707,490.55 and 153,130,801.70

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Solution

The fourth proportional to 637,804,993.70, 956,707,490.55 and 153,130,801.70 is: 229,696,202.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,804,993.70 : 956,707,490.55 = 153,130,801.70 : x
  2. Step 2: Convert to fraction form
    637,804,993.70/956,707,490.55 = 153,130,801.70/x
  3. Step 3: Cross multiply
    637,804,993.70x = 956,707,490.55 × 153,130,801.70
  4. Step 4: Simplify right side
    637,804,993.70x = 146,501,385,020,316,640
  5. Step 5: Solve for x
    x = 146,501,385,020,316,640/637,804,993.70
  6. Step 6: Final answer
    x = 229,696,202.55

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Double scale
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Similar ratio
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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.