Home / 434,421.60-651,664.80-153,902.40

Finding the Fourth Proportional to 434,421.60, 651,664.80 and 153,902.40

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Solution

The fourth proportional to 434,421.60, 651,664.80 and 153,902.40 is: 230,865.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,421.60 : 651,664.80 = 153,902.40 : x
  2. Step 2: Convert to fraction form
    434,421.60/651,664.80 = 153,902.40/x
  3. Step 3: Cross multiply
    434,421.60x = 651,664.80 × 153,902.40
  4. Step 4: Simplify right side
    434,421.60x = 100,292,776,715.52
  5. Step 5: Solve for x
    x = 100,292,776,715.52/434,421.60
  6. Step 6: Final answer
    x = 230,865.08

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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.