Home / 935,678.50-1,291,235.40-505,957.60

Finding the Fourth Proportional to 935,678.50, 1,291,235.40 and 505,957.60

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Solution

The fourth proportional to 935,678.50, 1,291,235.40 and 505,957.60 is: 698,220.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,678.50 : 1,291,235.40 = 505,957.60 : x
  2. Step 2: Convert to fraction form
    935,678.50/1,291,235.40 = 505,957.60/x
  3. Step 3: Cross multiply
    935,678.50x = 1,291,235.40 × 505,957.60
  4. Step 4: Simplify right side
    935,678.50x = 653,310,364,019.04
  5. Step 5: Solve for x
    x = 653,310,364,019.04/935,678.50
  6. Step 6: Final answer
    x = 698,220.99

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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.