Home / 869,235.40-1,303,853.10-554,307.40

Finding the Fourth Proportional to 869,235.40, 1,303,853.10 and 554,307.40

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Solution

The fourth proportional to 869,235.40, 1,303,853.10 and 554,307.40 is: 831,461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,235.40 : 1,303,853.10 = 554,307.40 : x
  2. Step 2: Convert to fraction form
    869,235.40/1,303,853.10 = 554,307.40/x
  3. Step 3: Cross multiply
    869,235.40x = 1,303,853.10 × 554,307.40
  4. Step 4: Simplify right side
    869,235.40x = 722,735,421,842.94
  5. Step 5: Solve for x
    x = 722,735,421,842.94/869,235.40
  6. Step 6: Final answer
    x = 831,461.10

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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.