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Finding the Fourth Proportional to 710,508.15, 980,935.65 and 462,386.52

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Solution

The fourth proportional to 710,508.15, 980,935.65 and 462,386.52 is: 638,376.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,508.15 : 980,935.65 = 462,386.52 : x
  2. Step 2: Convert to fraction form
    710,508.15/980,935.65 = 462,386.52/x
  3. Step 3: Cross multiply
    710,508.15x = 980,935.65 × 462,386.52
  4. Step 4: Simplify right side
    710,508.15x = 453,571,421,547.44
  5. Step 5: Solve for x
    x = 453,571,421,547.44/710,508.15
  6. Step 6: Final answer
    x = 638,376.10

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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.