Home / 665,802.18-918,806.85-363,996.18

Finding the Fourth Proportional to 665,802.18, 918,806.85 and 363,996.18

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Solution

The fourth proportional to 665,802.18, 918,806.85 and 363,996.18 is: 502,314.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,802.18 : 918,806.85 = 363,996.18 : x
  2. Step 2: Convert to fraction form
    665,802.18/918,806.85 = 363,996.18/x
  3. Step 3: Cross multiply
    665,802.18x = 918,806.85 × 363,996.18
  4. Step 4: Simplify right side
    665,802.18x = 334,442,183,557.83
  5. Step 5: Solve for x
    x = 334,442,183,557.83/665,802.18
  6. Step 6: Final answer
    x = 502,314.64

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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.