Home / 1,230,570.48-1,698,184-686,700.48

Finding the Fourth Proportional to 1,230,570.48, 1,698,184 and 686,700.48

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Solution

The fourth proportional to 1,230,570.48, 1,698,184 and 686,700.48 is: 947,644.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,570.48 : 1,698,184 = 686,700.48 : x
  2. Step 2: Convert to fraction form
    1,230,570.48/1,698,184 = 686,700.48/x
  3. Step 3: Cross multiply
    1,230,570.48x = 1,698,184 × 686,700.48
  4. Step 4: Simplify right side
    1,230,570.48x = 1,166,143,767,928.32
  5. Step 5: Solve for x
    x = 1,166,143,767,928.32/1,230,570.48
  6. Step 6: Final answer
    x = 947,644.84

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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.