Home / 614,128.55-921,302.19-209,298.33

Finding the Fourth Proportional to 614,128.55, 921,302.19 and 209,298.33

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Solution

The fourth proportional to 614,128.55, 921,302.19 and 209,298.33 is: 313,984.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,128.55 : 921,302.19 = 209,298.33 : x
  2. Step 2: Convert to fraction form
    614,128.55/921,302.19 = 209,298.33/x
  3. Step 3: Cross multiply
    614,128.55x = 921,302.19 × 209,298.33
  4. Step 4: Simplify right side
    614,128.55x = 192,827,009,792.34
  5. Step 5: Solve for x
    x = 192,827,009,792.34/614,128.55
  6. Step 6: Final answer
    x = 313,984.77

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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.