Home / 866,207,269.80-1,299,310,904.70-521,833,501.80

Finding the Fourth Proportional to 866,207,269.80, 1,299,310,904.70 and 521,833,501.80

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Solution

The fourth proportional to 866,207,269.80, 1,299,310,904.70 and 521,833,501.80 is: 782,750,252.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,207,269.80 : 1,299,310,904.70 = 521,833,501.80 : x
  2. Step 2: Convert to fraction form
    866,207,269.80/1,299,310,904.70 = 521,833,501.80/x
  3. Step 3: Cross multiply
    866,207,269.80x = 1,299,310,904.70 × 521,833,501.80
  4. Step 4: Simplify right side
    866,207,269.80x = 678,023,959,326,527,104
  5. Step 5: Solve for x
    x = 678,023,959,326,527,104/866,207,269.80
  6. Step 6: Final answer
    x = 782,750,252.70

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Double scale
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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.