Home / 854,574.90-1,281,862.35-535,710.30

Finding the Fourth Proportional to 854,574.90, 1,281,862.35 and 535,710.30

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Solution

The fourth proportional to 854,574.90, 1,281,862.35 and 535,710.30 is: 803,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,574.90 : 1,281,862.35 = 535,710.30 : x
  2. Step 2: Convert to fraction form
    854,574.90/1,281,862.35 = 535,710.30/x
  3. Step 3: Cross multiply
    854,574.90x = 1,281,862.35 × 535,710.30
  4. Step 4: Simplify right side
    854,574.90x = 686,706,864,077.21
  5. Step 5: Solve for x
    x = 686,706,864,077.21/854,574.90
  6. Step 6: Final answer
    x = 803,565.45

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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.