Home / 501,557.06-692,148.78-286,701.81

Finding the Fourth Proportional to 501,557.06, 692,148.78 and 286,701.81

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Solution

The fourth proportional to 501,557.06, 692,148.78 and 286,701.81 is: 395,648.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,557.06 : 692,148.78 = 286,701.81 : x
  2. Step 2: Convert to fraction form
    501,557.06/692,148.78 = 286,701.81/x
  3. Step 3: Cross multiply
    501,557.06x = 692,148.78 × 286,701.81
  4. Step 4: Simplify right side
    501,557.06x = 198,440,308,015.29
  5. Step 5: Solve for x
    x = 198,440,308,015.29/501,557.06
  6. Step 6: Final answer
    x = 395,648.52

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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.