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Finding the Fourth Proportional to 835,547.12, 1,153,354.56 and 496,015.64

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Solution

The fourth proportional to 835,547.12, 1,153,354.56 and 496,015.64 is: 684,679.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,547.12 : 1,153,354.56 = 496,015.64 : x
  2. Step 2: Convert to fraction form
    835,547.12/1,153,354.56 = 496,015.64/x
  3. Step 3: Cross multiply
    835,547.12x = 1,153,354.56 × 496,015.64
  4. Step 4: Simplify right side
    835,547.12x = 572,081,900,225.32
  5. Step 5: Solve for x
    x = 572,081,900,225.32/835,547.12
  6. Step 6: Final answer
    x = 684,679.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.