Home / 907,354.40-1,361,031.60-636,749.60

Finding the Fourth Proportional to 907,354.40, 1,361,031.60 and 636,749.60

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Solution

The fourth proportional to 907,354.40, 1,361,031.60 and 636,749.60 is: 955,124.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,354.40 : 1,361,031.60 = 636,749.60 : x
  2. Step 2: Convert to fraction form
    907,354.40/1,361,031.60 = 636,749.60/x
  3. Step 3: Cross multiply
    907,354.40x = 1,361,031.60 × 636,749.60
  4. Step 4: Simplify right side
    907,354.40x = 866,636,326,887.36
  5. Step 5: Solve for x
    x = 866,636,326,887.36/907,354.40
  6. Step 6: Final answer
    x = 955,124.40

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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.