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Finding the Fourth Proportional to 935,803.20, 1,402,783.20 and 462,561.60

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Solution

The fourth proportional to 935,803.20, 1,402,783.20 and 462,561.60 is: 693,386.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,803.20 : 1,402,783.20 = 462,561.60 : x
  2. Step 2: Convert to fraction form
    935,803.20/1,402,783.20 = 462,561.60/x
  3. Step 3: Cross multiply
    935,803.20x = 1,402,783.20 × 462,561.60
  4. Step 4: Simplify right side
    935,803.20x = 648,873,641,445.12
  5. Step 5: Solve for x
    x = 648,873,641,445.12/935,803.20
  6. Step 6: Final answer
    x = 693,386.86

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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.