Home / 986,298.85-1,478,140.41-506,507.26

Finding the Fourth Proportional to 986,298.85, 1,478,140.41 and 506,507.26

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Solution

The fourth proportional to 986,298.85, 1,478,140.41 and 506,507.26 is: 759,089.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,298.85 : 1,478,140.41 = 506,507.26 : x
  2. Step 2: Convert to fraction form
    986,298.85/1,478,140.41 = 506,507.26/x
  3. Step 3: Cross multiply
    986,298.85x = 1,478,140.41 × 506,507.26
  4. Step 4: Simplify right side
    986,298.85x = 748,688,849,939.94
  5. Step 5: Solve for x
    x = 748,688,849,939.94/986,298.85
  6. Step 6: Final answer
    x = 759,089.25

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.