Home / 877,365.81-1,210,742.51-490,184.19

Finding the Fourth Proportional to 877,365.81, 1,210,742.51 and 490,184.19

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Solution

The fourth proportional to 877,365.81, 1,210,742.51 and 490,184.19 is: 676,441.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,365.81 : 1,210,742.51 = 490,184.19 : x
  2. Step 2: Convert to fraction form
    877,365.81/1,210,742.51 = 490,184.19/x
  3. Step 3: Cross multiply
    877,365.81x = 1,210,742.51 × 490,184.19
  4. Step 4: Simplify right side
    877,365.81x = 593,486,834,112.00
  5. Step 5: Solve for x
    x = 593,486,834,112.00/877,365.81
  6. Step 6: Final answer
    x = 676,441.72

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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.