Home / 669,535.78-1,007,923.40-609,947.22

Finding the Fourth Proportional to 669,535.78, 1,007,923.40 and 609,947.22

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Solution

The fourth proportional to 669,535.78, 1,007,923.40 and 609,947.22 is: 918,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,535.78 : 1,007,923.40 = 609,947.22 : x
  2. Step 2: Convert to fraction form
    669,535.78/1,007,923.40 = 609,947.22/x
  3. Step 3: Cross multiply
    669,535.78x = 1,007,923.40 × 609,947.22
  4. Step 4: Simplify right side
    669,535.78x = 614,780,075,802.95
  5. Step 5: Solve for x
    x = 614,780,075,802.95/669,535.78
  6. Step 6: Final answer
    x = 918,218.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.