Home / 679,792,607.40-1,019,688,911.10-543,743,711.40

Finding the Fourth Proportional to 679,792,607.40, 1,019,688,911.10 and 543,743,711.40

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Solution

The fourth proportional to 679,792,607.40, 1,019,688,911.10 and 543,743,711.40 is: 815,615,567.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,792,607.40 : 1,019,688,911.10 = 543,743,711.40 : x
  2. Step 2: Convert to fraction form
    679,792,607.40/1,019,688,911.10 = 543,743,711.40/x
  3. Step 3: Cross multiply
    679,792,607.40x = 1,019,688,911.10 × 543,743,711.40
  4. Step 4: Simplify right side
    679,792,607.40x = 554,449,432,994,938,624
  5. Step 5: Solve for x
    x = 554,449,432,994,938,624/679,792,607.40
  6. Step 6: Final answer
    x = 815,615,567.10

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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.