Home / 910,048,817.39-1,365,466,483.29-489,378,506.74

Finding the Fourth Proportional to 910,048,817.39, 1,365,466,483.29 and 489,378,506.74

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Solution

The fourth proportional to 910,048,817.39, 1,365,466,483.29 and 489,378,506.74 is: 734,279,234.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,048,817.39 : 1,365,466,483.29 = 489,378,506.74 : x
  2. Step 2: Convert to fraction form
    910,048,817.39/1,365,466,483.29 = 489,378,506.74/x
  3. Step 3: Cross multiply
    910,048,817.39x = 1,365,466,483.29 × 489,378,506.74
  4. Step 4: Simplify right side
    910,048,817.39x = 668,229,948,599,545,856
  5. Step 5: Solve for x
    x = 668,229,948,599,545,856/910,048,817.39
  6. Step 6: Final answer
    x = 734,279,234.07

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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.