Home / 777,848.19-1,073,430.51-438,328.59

Finding the Fourth Proportional to 777,848.19, 1,073,430.51 and 438,328.59

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Solution

The fourth proportional to 777,848.19, 1,073,430.51 and 438,328.59 is: 604,893.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,848.19 : 1,073,430.51 = 438,328.59 : x
  2. Step 2: Convert to fraction form
    777,848.19/1,073,430.51 = 438,328.59/x
  3. Step 3: Cross multiply
    777,848.19x = 1,073,430.51 × 438,328.59
  4. Step 4: Simplify right side
    777,848.19x = 470,515,281,911.28
  5. Step 5: Solve for x
    x = 470,515,281,911.28/777,848.19
  6. Step 6: Final answer
    x = 604,893.46

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Double scale
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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.