Home / 405,655,559,132.40-608,483,338,698.60-286,639,984,911.60

Finding the Fourth Proportional to 405,655,559,132.40, 608,483,338,698.60 and 286,639,984,911.60

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Solution

The fourth proportional to 405,655,559,132.40, 608,483,338,698.60 and 286,639,984,911.60 is: 429,959,977,367.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,655,559,132.40 : 608,483,338,698.60 = 286,639,984,911.60 : x
  2. Step 2: Convert to fraction form
    405,655,559,132.40/608,483,338,698.60 = 286,639,984,911.60/x
  3. Step 3: Cross multiply
    405,655,559,132.40x = 608,483,338,698.60 × 286,639,984,911.60
  4. Step 4: Simplify right side
    405,655,559,132.40x = 174,415,655,023,526,660,800,512
  5. Step 5: Solve for x
    x = 174,415,655,023,526,660,800,512/405,655,559,132.40
  6. Step 6: Final answer
    x = 429,959,977,367.40

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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.