Home / 936,339.60-1,402,133.40-515,139.60

Finding the Fourth Proportional to 936,339.60, 1,402,133.40 and 515,139.60

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Solution

The fourth proportional to 936,339.60, 1,402,133.40 and 515,139.60 is: 771,402.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,339.60 : 1,402,133.40 = 515,139.60 : x
  2. Step 2: Convert to fraction form
    936,339.60/1,402,133.40 = 515,139.60/x
  3. Step 3: Cross multiply
    936,339.60x = 1,402,133.40 × 515,139.60
  4. Step 4: Simplify right side
    936,339.60x = 722,294,438,822.64
  5. Step 5: Solve for x
    x = 722,294,438,822.64/936,339.60
  6. Step 6: Final answer
    x = 771,402.21

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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.