Home / 670,290.32-924,929.88-383,783.60

Finding the Fourth Proportional to 670,290.32, 924,929.88 and 383,783.60

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Solution

The fourth proportional to 670,290.32, 924,929.88 and 383,783.60 is: 529,580.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,290.32 : 924,929.88 = 383,783.60 : x
  2. Step 2: Convert to fraction form
    670,290.32/924,929.88 = 383,783.60/x
  3. Step 3: Cross multiply
    670,290.32x = 924,929.88 × 383,783.60
  4. Step 4: Simplify right side
    670,290.32x = 354,972,919,093.97
  5. Step 5: Solve for x
    x = 354,972,919,093.97/670,290.32
  6. Step 6: Final answer
    x = 529,580.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.