Home / 1,178,346.60-1,768,211.10-430,468.20

Finding the Fourth Proportional to 1,178,346.60, 1,768,211.10 and 430,468.20

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Solution

The fourth proportional to 1,178,346.60, 1,768,211.10 and 430,468.20 is: 645,954.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,346.60 : 1,768,211.10 = 430,468.20 : x
  2. Step 2: Convert to fraction form
    1,178,346.60/1,768,211.10 = 430,468.20/x
  3. Step 3: Cross multiply
    1,178,346.60x = 1,768,211.10 × 430,468.20
  4. Step 4: Simplify right side
    1,178,346.60x = 761,158,649,437.02
  5. Step 5: Solve for x
    x = 761,158,649,437.02/1,178,346.60
  6. Step 6: Final answer
    x = 645,954.81

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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.