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Finding the Fourth Proportional to 545,809,710.80, 818,714,566.20 and 531,460,803.80

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Solution

The fourth proportional to 545,809,710.80, 818,714,566.20 and 531,460,803.80 is: 797,191,205.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,809,710.80 : 818,714,566.20 = 531,460,803.80 : x
  2. Step 2: Convert to fraction form
    545,809,710.80/818,714,566.20 = 531,460,803.80/x
  3. Step 3: Cross multiply
    545,809,710.80x = 818,714,566.20 × 531,460,803.80
  4. Step 4: Simplify right side
    545,809,710.80x = 435,114,701,435,420,352
  5. Step 5: Solve for x
    x = 435,114,701,435,420,352/545,809,710.80
  6. Step 6: Final answer
    x = 797,191,205.70

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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.